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87706612 = 2273132379
BaseRepresentation
bin1010011101001…
…00101111110100
320010000221212001
411032210233310
5134423102422
612411505044
72113331260
oct516445764
9203027761
1087706612
1145565304
1225458184
131522b106
14b9110a0
157a77227
hex53a4bf4

87706612 has 12 divisors (see below), whose sum is σ = 175413280. Its totient is φ = 37588536.

The previous prime is 87706607. The next prime is 87706631. The reversal of 87706612 is 21660778.

It is a happy number.

87706612 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1566162 + ... + 1566217.

Almost surely, 287706612 is an apocalyptic number.

It is an amenable number.

87706612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87706612 is a wasteful number, since it uses less digits than its factorization.

87706612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132390 (or 3132388 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 87706612 is about 9365.1808311426. The cubic root of 87706612 is about 444.3011578564.

The spelling of 87706612 in words is "eighty-seven million, seven hundred six thousand, six hundred twelve".

Divisors: 1 2 4 7 14 28 3132379 6264758 12529516 21926653 43853306 87706612