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90906344 = 23171076247
BaseRepresentation
bin1010110101100…
…01111011101000
320100001112001122
411122301323220
5141233000334
613004234412
72152456034
oct532617350
9210045048
1090906344
1147350311
122653ba08
1315aab649
14c1051c4
157eaa32e
hex56b1ee8

90906344 has 32 divisors (see below), whose sum is σ = 182191680. Its totient is φ = 42372864.

The previous prime is 90906313. The next prime is 90906349. The reversal of 90906344 is 44360909.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (90906349) 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, 11429 + ... + 17675.

It is an arithmetic number, because the mean of its divisors is an integer number (5693490).

Almost surely, 290906344 is an apocalyptic number.

It is an amenable number.

90906344 is an abundant number, since it is smaller than the sum of its proper divisors (91285336).

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

90906344 is a wasteful number, since it uses less digits than its factorization.

90906344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6377 (or 6373 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 90906344 is about 9534.4818422398. The cubic root of 90906344 is about 449.6397841595.

The spelling of 90906344 in words is "ninety million, nine hundred six thousand, three hundred forty-four".

Divisors: 1 2 4 8 17 34 68 107 136 214 428 856 1819 3638 6247 7276 12494 14552 24988 49976 106199 212398 424796 668429 849592 1336858 2673716 5347432 11363293 22726586 45453172 90906344