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87625972 = 22710928711
BaseRepresentation
bin1010011100100…
…01000011110100
320002212212020101
411032101003310
5134413012342
612410043444
72112544210
oct516210364
9202785211
1087625972
114550a765
1225419584
13152004b5
14b8cd940
157a5d3b7
hex53910f4

87625972 has 24 divisors (see below), whose sum is σ = 176865920. Its totient is φ = 37208160.

The previous prime is 87625969. The next prime is 87625981. The reversal of 87625972 is 27952678.

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, 11304 + ... + 17407.

Almost surely, 287625972 is an apocalyptic number.

It is an amenable number.

87625972 is an abundant number, since it is smaller than the sum of its proper divisors (89239948).

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

87625972 is a wasteful number, since it uses less digits than its factorization.

87625972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28831 (or 28829 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 87625972 is about 9360.8745317946. The cubic root of 87625972 is about 444.1649483174.

The spelling of 87625972 in words is "eighty-seven million, six hundred twenty-five thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 109 218 436 763 1526 3052 28711 57422 114844 200977 401954 803908 3129499 6258998 12517996 21906493 43812986 87625972