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23798637252 = 22321350851789
BaseRepresentation
bin10110001010100000…
…100110001011000100
32021102120100000221100
4112022200212023010
5342214422343002
614533303220100
71501516036035
oct261240461304
967376300840
1023798637252
11a10278a455
124742147630
1323236859a0
14121a9c0a8c
159444b811c
hex58a8262c4

23798637252 has 36 divisors (see below), whose sum is σ = 64785180460. Its totient is φ = 7322657472.

The previous prime is 23798637143. The next prime is 23798637253. The reversal of 23798637252 is 25273689732.

It can be written as a sum of positive squares in 2 ways, for example, as 10725916356 + 13072720896 = 103566^2 + 114336^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×237986372522 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23798637253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25425427 + ... + 25426362.

Almost surely, 223798637252 is an apocalyptic number.

It is an amenable number.

23798637252 is an abundant number, since it is smaller than the sum of its proper divisors (40986543208).

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

23798637252 is a wasteful number, since it uses less digits than its factorization.

23798637252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50851812 (or 50851807 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 23798637252 in words is "twenty-three billion, seven hundred ninety-eight million, six hundred thirty-seven thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 50851789 101703578 152555367 203407156 305110734 457666101 610221468 661073257 915332202 1322146514 1830664404 1983219771 2644293028 3966439542 5949659313 7932879084 11899318626 23798637252