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85607636 = 2226979561
BaseRepresentation
bin1010001101001…
…00010011010100
312222002022121012
411012210103110
5133403421021
612254511352
72056436642
oct506442324
9188068535
1085607636
1144361314
1224805558
131497490a
14b526192
1577b035b
hex51a44d4

85607636 has 12 divisors (see below), whose sum is σ = 150372180. Its totient is φ = 42644160.

The previous prime is 85607609. The next prime is 85607653. The reversal of 85607636 is 63670658.

It can be written as a sum of positive squares in 2 ways, for example, as 8940100 + 76667536 = 2990^2 + 8756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85607593 and 85607602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38705 + ... + 40856.

It is an arithmetic number, because the mean of its divisors is an integer number (12531015).

Almost surely, 285607636 is an apocalyptic number.

It is an amenable number.

85607636 is a deficient number, since it is larger than the sum of its proper divisors (64764544).

85607636 is a wasteful number, since it uses less digits than its factorization.

85607636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79834 (or 79832 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 85607636 is about 9252.4394621094. The cubic root of 85607636 is about 440.7281950071.

The spelling of 85607636 in words is "eighty-five million, six hundred seven thousand, six hundred thirty-six".

Divisors: 1 2 4 269 538 1076 79561 159122 318244 21401909 42803818 85607636