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20101500430 = 25111074014259
BaseRepresentation
bin10010101110001001…
…001000111000001110
31220212220112000122221
4102232021020320032
5312131441003210
613122352525554
71311063635344
oct225611107016
956786460587
1020101500430
118585855880
123a8bb508ba
131b8472536b
14d89987994
157c9b1a1da
hex4ae248e0e

20101500430 has 64 divisors (see below), whose sum is σ = 39949666560. Its totient is φ = 7221568000.

The previous prime is 20101500421. The next prime is 20101500431. The reversal of 20101500430 is 3400510102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101500431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4717641 + ... + 4721899.

It is an arithmetic number, because the mean of its divisors is an integer number (624213540).

Almost surely, 220101500430 is an apocalyptic number.

20101500430 is a deficient number, since it is larger than the sum of its proper divisors (19848166130).

20101500430 is a wasteful number, since it uses less digits than its factorization.

20101500430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785.

The product of its (nonzero) digits is 120, while the sum is 16.

The spelling of 20101500430 in words is "twenty billion, one hundred one million, five hundred thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 55 107 110 214 401 535 802 1070 1177 2005 2354 4010 4259 4411 5885 8518 8822 11770 21295 22055 42590 42907 44110 46849 85814 93698 214535 234245 429070 455713 468490 471977 911426 943954 1707859 2278565 2359885 3415718 4557130 4719770 5012843 8539295 10025686 17078590 18786449 25064215 37572898 50128430 93932245 182740913 187864490 365481826 913704565 1827409130 2010150043 4020300086 10050750215 20101500430