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10161231075 = 32521713212011
BaseRepresentation
bin10010111011010100…
…00001010011100011
3222020011011000120200
421131222001103203
5131302233343300
64400142240243
7506543016252
oct113552012343
928204130520
1010161231075
114344828336
121b76b86083
13c5c21c388
146c5732799
153e710a200
hex25da814e3

10161231075 has 72 divisors (see below), whose sum is σ = 19294653456. Its totient is φ = 5094144000.

The previous prime is 10161231049. The next prime is 10161231089. The reversal of 10161231075 is 57013216101.

10161231075 is a `hidden beast` number, since 10 + 1 + 612 + 31 + 0 + 7 + 5 = 666.

It is not a de Polignac number, because 10161231075 - 25 = 10161231043 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5051820 + ... + 5053830.

It is an arithmetic number, because the mean of its divisors is an integer number (267981298).

Almost surely, 210161231075 is an apocalyptic number.

10161231075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10161231075 is a deficient number, since it is larger than the sum of its proper divisors (9133422381).

10161231075 is a wasteful number, since it uses less digits than its factorization.

10161231075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365 (or 3357 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

Adding to 10161231075 its reverse (57013216101), we get a palindrome (67174447176).

The spelling of 10161231075 in words is "ten billion, one hundred sixty-one million, two hundred thirty-one thousand, seventy-five".

Divisors: 1 3 5 9 15 17 25 45 51 75 85 153 225 255 425 765 1275 1321 2011 3825 3963 6033 6605 10055 11889 18099 19815 22457 30165 33025 34187 50275 59445 67371 90495 99075 102561 112285 150825 170935 202113 297225 307683 336855 452475 512805 561425 854675 1010565 1538415 1684275 2564025 2656531 5052825 7692075 7969593 13282655 23908779 39847965 45161027 66413275 119543895 135483081 199239825 225805135 406449243 597719475 677415405 1129025675 2032246215 3387077025 10161231075