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90757650427 = 3717207142553
BaseRepresentation
bin101010010000110010…
…0111101011111111011
322200021001112100010021
41110201210331133323
52441332424303202
6105405443231311
76362026204633
oct1244144753773
9280231470107
1090757650427
1135543367074
121570a678537
138734a98042
14456d7a16c3
152562b3aa37
hex152193d7fb

90757650427 has 8 divisors (see below), whose sum is σ = 93216630816. Its totient is φ = 88298989632.

The previous prime is 90757650407. The next prime is 90757650439. The reversal of 90757650427 is 72405675709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90757650427 - 27 = 90757650299 is a prime.

It is a super-2 number, since 2×907576504272 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90757650407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565383 + ... + 707935.

It is an arithmetic number, because the mean of its divisors is an integer number (11652078852).

Almost surely, 290757650427 is an apocalyptic number.

90757650427 is a deficient number, since it is larger than the sum of its proper divisors (2458980389).

90757650427 is a wasteful number, since it uses less digits than its factorization.

90757650427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159797.

The product of its (nonzero) digits is 3704400, while the sum is 52.

The spelling of 90757650427 in words is "ninety billion, seven hundred fifty-seven million, six hundred fifty thousand, four hundred twenty-seven".

Divisors: 1 37 17207 142553 636659 5274461 2452909471 90757650427