Language name and locationː Baram Kayan (Uma:ʔ Lekan dialect), Kalimantan, Indonesia [Refer to Ethnologue]
语言名称和分布地区: 巴兰河-卡扬语 (Uma:ʔ Lekan dialect)乌马莱坎方言), 印度尼西亚加里曼丹岛马勒山脉地区

1. ji:ʔ

21. duaʔ pulu:ʔ ji:ʔ

2. duaʔ

22. duaʔ pulu:ʔ duaʔ

3. telo:ʔ

23. duaʔ pulu:ʔ telo:ʔ

4. pa:t

24. duaʔ pulu:ʔ pa:t

5. limaʔ

25. duaʔ pulu:ʔ limaʔ

6. nam

26. duaʔ pulu:ʔ nam

7. tusu:ʔ, tuʃu:ʔ

27. duaʔ pulu: tusu:ʔ

8. sayaʔ

28. duaʔ pulu: sayaʔ

9. pita:n

29. duaʔ pulu:ʔ pita:n

10. pulu:ʔ

30. telo:ʔ pulu:ʔ

11. ji:ʔ huyn / pulu:ʔ ji:ʔ (today)*

40. pa:t pulu:ʔ

12. duaʔ huyn / pulu:ʔ duaʔ (today)

50. limaʔ pulu:ʔ

13. telo:ʔ huyn  / pulu:ʔ telo:ʔ (today)

60. nam pulu:ʔ

14. pa:t huyn / pulu:ʔ pa:t (today)

70. tusu:ʔ pulu:ʔ

15. limaʔ huyn / pulu:ʔ limaʔ (today)

80. sayaʔ pulu:ʔ

16. nam huyn / pulu:ʔ nam (today)

90. pita:n pulu:ʔ

17. tusu:ʔ huyn / pulu:ʔ tusu:ʔ (today)

100. atu: / ji:ʔ atu:,  200. duaʔ atu:

18. sayaʔ huyn  / pulu:ʔ sayaʔ (today)

400. pa:t atu:,  800.  sayaʔ atu:

19. pita:n huyn / pulu:ʔ pita:n (today)

1000. libu / ji:ʔ libu

20. duaʔ pulu:ʔ

2000. duaʔ libu

Linguist providing data and dateː Dr. Mika Okushima, Faculty of International Studies, Tenri University, Nara, Japan, February 23, 2021. Data collected in 2018.
提供资料的语言 学家: 奥岛美夏博士, 日本奈良县天理大学国际学部, 2021 年 2 月 23 日

Other commentsː Baram Kayan (Umaa' Lekan) has a decimal system. The data was from the Uma:ʔ Lekan (one of the Kayan-Busang subgroups among Kayanic peoples, in Miau Baru village, upper Kelinjau, East Kalimantan, Indonesia in 2018 and there are two forms for the compound numerals from 11 to 19, the first one was used in traditional counting and the second one is used today. The Umaa' Lekan, strictly speaking, it should neither be put into "Baram Kayan." They are quite similar with the Uma Pu of Sarawak (the Baram basin), but the Umaa' Lekan were influenced from the Ga'ay subgroups such as the Long Way in eastern tributaries of the Mahakam.
Note that the Kayanic peoples, the Uma:ʔ Tua:n and Uma:ʔ Lekan. They are called "Busa:ng" in Indonesia, while they are actually called "Kayan" in Sarawak (Malaysian Borneo). "Kayan" in general, or I prefer to call "Kayanic peoples," can be devided into 3 main subgroups, namely, Kayan-Busang, Bahau, and Ga'ay, according to their origins. The words of Uma:ʔ Tuaan are almost the same as some other Busa:ng / Kayan, such as the Uma:' Lekwee, Uma Mehak, Uma Wak, and Uma Luhat. On the other hand, the Uma:ʔ Lekan are slightly different from those Busa:ng of middle-upper Mahakam, and their language is closer to the Uma:ʔ Suling, etc.

Note that the traditional phonetic symbolsː  c=IPA [t͡ʃ],  j=IPA [dʒ], y=IPA [j]