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87992902 = 2292815399
BaseRepresentation
bin1010011111010…
…10101001000110
320010120111120101
411033222221012
5140011233102
612421554314
72115633034
oct517525106
9203514511
1087992902
1145740408
122557599a
13152cb50a
14b987554
157ad1e87
hex53eaa46

87992902 has 16 divisors (see below), whose sum is σ = 137052000. Its totient is φ = 42320320.

The previous prime is 87992899. The next prime is 87992953. The reversal of 87992902 is 20929978.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13599 + ... + 18997.

It is an arithmetic number, because the mean of its divisors is an integer number (8565750).

Almost surely, 287992902 is an apocalyptic number.

87992902 is a deficient number, since it is larger than the sum of its proper divisors (49059098).

87992902 is a wasteful number, since it uses less digits than its factorization.

87992902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 87992902 is about 9380.4531873465. The cubic root of 87992902 is about 444.7840588448.

The spelling of 87992902 in words is "eighty-seven million, nine hundred ninety-two thousand, nine hundred two".

Divisors: 1 2 29 58 281 562 5399 8149 10798 16298 156571 313142 1517119 3034238 43996451 87992902