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90345873614 = 245172936807
BaseRepresentation
bin101010000100100001…
…0001010000011001110
322122012100200220112012
41110021002022003032
52440012020423424
6105300533341222
76345566153303
oct1241102120316
9278170626465
1090345873614
1135351988057
1215614797812
13869a692219
144530c130aa
15253b8ecb0e
hex150908a0ce

90345873614 has 4 divisors (see below), whose sum is σ = 135518810424. Its totient is φ = 45172936806.

The previous prime is 90345873593. The next prime is 90345873643. The reversal of 90345873614 is 41637854309.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41637854309 = 80527517067.

It is a super-2 number, since 2×903458736142 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 22586468402 + ... + 22586468405.

It is an arithmetic number, because the mean of its divisors is an integer number (33879702606).

Almost surely, 290345873614 is an apocalyptic number.

90345873614 is a deficient number, since it is larger than the sum of its proper divisors (45172936810).

90345873614 is a wasteful number, since it uses less digits than its factorization.

90345873614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45172936809.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 90345873614 in words is "ninety billion, three hundred forty-five million, eight hundred seventy-three thousand, six hundred fourteen".

Divisors: 1 2 45172936807 90345873614