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90875744 = 2517167051
BaseRepresentation
bin1010110101010…
…10011101100000
320022222222002022
411122222131200
5141231010434
613003441012
72152300601
oct532523540
9208888068
1090875744
114732a323
1226526168
1315a9a73b
14c0d7da8
157ea122e
hex56aa760

90875744 has 24 divisors (see below), whose sum is σ = 189436968. Its totient is φ = 42764800.

The previous prime is 90875731. The next prime is 90875749. The reversal of 90875744 is 44757809.

It is a junction number, because it is equal to n+sod(n) for n = 90875695 and 90875704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90875749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82982 + ... + 84069.

It is an arithmetic number, because the mean of its divisors is an integer number (7893207).

Almost surely, 290875744 is an apocalyptic number.

It is an amenable number.

90875744 is an abundant number, since it is smaller than the sum of its proper divisors (98561224).

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

90875744 is a wasteful number, since it uses less digits than its factorization.

90875744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167078 (or 167070 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 90875744 is about 9532.8770053956. The cubic root of 90875744 is about 449.5893273894.

It can be divided in two parts, 90875 and 744, that added together give a palindrome (91619).

The spelling of 90875744 in words is "ninety million, eight hundred seventy-five thousand, seven hundred forty-four".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 167051 334102 668204 1336408 2672816 2839867 5345632 5679734 11359468 22718936 45437872 90875744