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23113430120 = 23511311694533
BaseRepresentation
bin10101100001101010…
…101111010001101000
32012122210222220110102
4111201222233101220
5334314014230440
614341305004532
71445525625434
oct254152572150
965583886412
1023113430120
119890a24170
124590783748
132244725891
1411939b79c4
15904268b15
hex561aaf468

23113430120 has 64 divisors (see below), whose sum is σ = 58563095040. Its totient is φ = 8133753600.

The previous prime is 23113430113. The next prime is 23113430147. The reversal of 23113430120 is 2103431132.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23113430092 and 23113430101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833627 + ... + 860906.

It is an arithmetic number, because the mean of its divisors is an integer number (915048360).

Almost surely, 223113430120 is an apocalyptic number.

23113430120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23113430120 is an abundant number, since it is smaller than the sum of its proper divisors (35449664920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23113430120 is a wasteful number, since it uses less digits than its factorization.

23113430120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694586 (or 1694582 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23113430120 its reverse (2103431132), we get a palindrome (25216861252).

The spelling of 23113430120 in words is "twenty-three billion, one hundred thirteen million, four hundred thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 31 40 44 55 62 88 110 124 155 220 248 310 341 440 620 682 1240 1364 1705 2728 3410 6820 13640 1694533 3389066 6778132 8472665 13556264 16945330 18639863 33890660 37279726 52530523 67781320 74559452 93199315 105061046 149118904 186398630 210122092 262652615 372797260 420244184 525305230 577835753 745594520 1050610460 1155671506 2101220920 2311343012 2889178765 4622686024 5778357530 11556715060 23113430120