Like many

Indo-Aryan languages The Indo-Aryan languages (or sometimes Indic languages) are a branch of the Indo-Iranian languages in the Indo-European languages, Indo-European language family. As of the early 21st century, they have more than 800 million speakers, primarily ...

, Hindustani (Hindi-Urdu) has a decimal numeral system that is contracted to the extent that nearly every number 1–99 is irregular, and needs to be memorized as a separate numeral. Numbers from 100 up are more regular. There are numerals for 100, ''sau''; 1,000, ''hazār''; and successive multiples by 100 of 1000: '' lākh (lakh)'' 100,000 (10⁵), '' karoṛ'' (crore) 1,00,00,000 (10⁷), ''arab'' 1,00,00,00,000 (10⁹, billion), ''kharab'' 1,00,00,00,00,000 (10¹¹), ''nīl'' 1,00,00,00,00,00,000 (10¹³), ''padma'' 1,00,00,00,00,00,00,000 (10¹⁵, quadrillion). (See Indian numbering system.) '' Lakh'' and '' crore'' are common enough to have entered Indian English. In writing

Hindi Hindi ( Devanāgarī: or , ), or more precisely Modern Standard Hindi (Devanagari: ), is an Indo-Aryan language spoken chiefly in the Hindi Belt region encompassing parts of northern, central, eastern, and western India. Hindi has been ...

, numbers are usually represented using Devanagari numeral signs, while in

Urdu Urdu (;"Urdu"
'' Eastern Arabic numeral system.

References

{{reflist Hindustani language Numerals