How many thousands make a Billion.

Write the following in words in International system of numeration:

$645007$

Write the following in words in International system of numeration:

$2754629$

Write the following in words in International system of numeration:

$32604509$

Write the following in words in International system of numeration:

$57076342$

Write the following number inserting commas in Indian system of numeration. Also, write the number name in Indian system of numeration:

$7904235$

Write the following number inserting commas in Indian system of numeration. Also, write the number name in Indian system of numeration:

$35040027$

Write the following number inserting commas in Indian system of numeration. Also, write the number name in Indian system of numeration:

$2700085$

Write the following number inserting commas in Indian system of numeration. Also, write the number name in Indian system of numeration:

$5974316$