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5231937656 = 23111671991789
BaseRepresentation
bin1001101111101100…
…10000100001111000
3111111121210222012202
410313312100201320
541203334001111
62223054325332
7243436510361
oct46766204170
914447728182
105231937656
112245324220
1210201b9848
13654c18aca
14378bd8b68
152094bdb3b
hex137d90878

5231937656 has 64 divisors (see below), whose sum is σ = 10825920000. Its totient is φ = 2350719360.

The previous prime is 5231937617. The next prime is 5231937671. The reversal of 5231937656 is 6567391325.

It is a self number, because there is not a number n which added to its sum of digits gives 5231937656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2923610 + ... + 2925398.

It is an arithmetic number, because the mean of its divisors is an integer number (169155000).

Almost surely, 25231937656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5231937656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5412960000).

5231937656 is an abundant number, since it is smaller than the sum of its proper divisors (5593982344).

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

5231937656 is a wasteful number, since it uses less digits than its factorization.

5231937656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172 (or 2168 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 47.

The square root of 5231937656 is about 72332.1343249320. The cubic root of 5231937656 is about 1736.0178516502.

The spelling of 5231937656 in words is "five billion, two hundred thirty-one million, nine hundred thirty-seven thousand, six hundred fifty-six".

Divisors: 1 2 4 8 11 22 44 88 167 199 334 398 668 796 1336 1592 1789 1837 2189 3578 3674 4378 7156 7348 8756 14312 14696 17512 19679 33233 39358 66466 78716 132932 157432 265864 298763 356011 365563 597526 712022 731126 1195052 1424044 1462252 2390104 2848088 2924504 3286393 3916121 6572786 7832242 13145572 15664484 26291144 31328968 59453837 118907674 237815348 475630696 653992207 1307984414 2615968828 5231937656