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90332324431 = 1729868121107
BaseRepresentation
bin101010000100000111…
…0011110001001001111
322122011102012112112121
41110020032132021033
52440000033340211
6105255331113411
76345343042306
oct1241016361117
9278142175477
1090332324431
1135345273388
1215610142867
13869792a05b
14452d0c743d
15253a623271
hex150839e24f

90332324431 has 16 divisors (see below), whose sum is σ = 98960214240. Its totient is φ = 82073635840.

The previous prime is 90332324429. The next prime is 90332324449. The reversal of 90332324431 is 13442323309.

It is a cyclic number.

It is not a de Polignac number, because 90332324431 - 21 = 90332324429 is a prime.

It is a super-2 number, since 2×903323244312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90332364431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4269180 + ... + 4290286.

It is an arithmetic number, because the mean of its divisors is an integer number (6185013390).

Almost surely, 290332324431 is an apocalyptic number.

90332324431 is a deficient number, since it is larger than the sum of its proper divisors (8627889809).

90332324431 is a wasteful number, since it uses less digits than its factorization.

90332324431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29834.

The product of its (nonzero) digits is 46656, while the sum is 34.

The spelling of 90332324431 in words is "ninety billion, three hundred thirty-two million, three hundred twenty-four thousand, four hundred thirty-one".

Divisors: 1 17 29 493 8681 21107 147577 251749 358819 612103 4279733 10405751 183229867 3114907739 5313666143 90332324431