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23901292428 = 22313459733329
BaseRepresentation
bin10110010000101000…
…001100011110001100
32021200201111110100220
4112100220030132030
5342422212324203
614551411351340
71504203430206
oct262050143614
967621443326
1023901292428
11a155724842
1247705b2550
13233ba18bb0
14122a4a3776
1594d4e4653
hex590a0c78c

23901292428 has 48 divisors (see below), whose sum is σ = 60074525280. Its totient is φ = 7352423424.

The previous prime is 23901292427. The next prime is 23901292433. The reversal of 23901292428 is 82429210932.

It is a self number, because there is not a number n which added to its sum of digits gives 23901292428.

It is not an unprimeable number, because it can be changed into a prime (23901292427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700468 + ... + 733796.

It is an arithmetic number, because the mean of its divisors is an integer number (1251552610).

Almost surely, 223901292428 is an apocalyptic number.

It is an amenable number.

23901292428 is an abundant number, since it is smaller than the sum of its proper divisors (36173232852).

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

23901292428 is a wasteful number, since it uses less digits than its factorization.

23901292428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37946 (or 37944 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 23901292428 in words is "twenty-three billion, nine hundred one million, two hundred ninety-two thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 4597 9194 13791 18388 27582 33329 55164 59761 66658 99987 119522 133316 179283 199974 239044 358566 399948 433277 717132 866554 1299831 1733108 2599662 5199324 153213413 306426826 459640239 612853652 919280478 1838560956 1991774369 3983548738 5975323107 7967097476 11950646214 23901292428