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26315265012 = 22319412815069
BaseRepresentation
bin11000100000100000…
…110001001111110100
32111220221210222012220
4120200200301033310
5412343201440022
620031123242340
71621055030151
oct304040611764
974827728186
1026315265012
1110184310103
125124b193b0
132634b8763a
1413b8d1d228
15a403ca85c
hex6208313f4

26315265012 has 48 divisors (see below), whose sum is σ = 66210446400. Its totient is φ = 8107395840.

The previous prime is 26315264981. The next prime is 26315265017. The reversal of 26315265012 is 21056251362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26315265017) 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, 1398187 + ... + 1416882.

It is an arithmetic number, because the mean of its divisors is an integer number (1379384300).

Almost surely, 226315265012 is an apocalyptic number.

It is an amenable number.

26315265012 is an abundant number, since it is smaller than the sum of its proper divisors (39895181388).

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

26315265012 is a wasteful number, since it uses less digits than its factorization.

26315265012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815136 (or 2815134 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 26315265012 in words is "twenty-six billion, three hundred fifteen million, two hundred sixty-five thousand, twelve".

Divisors: 1 2 3 4 6 12 19 38 41 57 76 82 114 123 164 228 246 492 779 1558 2337 3116 4674 9348 2815069 5630138 8445207 11260276 16890414 33780828 53486311 106972622 115417829 160458933 213945244 230835658 320917866 346253487 461671316 641835732 692506974 1385013948 2192938751 4385877502 6578816253 8771755004 13157632506 26315265012