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9131942064 = 243727178399
BaseRepresentation
bin10001000000100111…
…00110000010110000
3212120102100201111110
420200103212002300
5122200234121224
64110053113320
7442204140540
oct104023460260
925512321443
109131942064
11396681a263
12192a328840
13b26bc8a1b
14628b5d320
15386a90929
hex2204e60b0

9131942064 has 40 divisors (see below), whose sum is σ = 26960972800. Its totient is φ = 2609126208.

The previous prime is 9131942063. The next prime is 9131942069. The reversal of 9131942064 is 4602491319.

It is not an unprimeable number, because it can be changed into a prime (9131942063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13588864 + ... + 13589535.

It is an arithmetic number, because the mean of its divisors is an integer number (674024320).

Almost surely, 29131942064 is an apocalyptic number.

It is an amenable number.

9131942064 is an abundant number, since it is smaller than the sum of its proper divisors (17829030736).

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

9131942064 is a wasteful number, since it uses less digits than its factorization.

9131942064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27178417 (or 27178411 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 9131942064 is about 95561.1953880863. The cubic root of 9131942064 is about 2090.1993860587.

The spelling of 9131942064 in words is "nine billion, one hundred thirty-one million, nine hundred forty-two thousand, sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 27178399 54356798 81535197 108713596 163070394 190248793 217427192 326140788 380497586 434854384 570746379 652281576 760995172 1141492758 1304563152 1521990344 2282985516 3043980688 4565971032 9131942064