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87168064 = 261937057
BaseRepresentation
bin1010011001000…
…01010001000000
320002000121002211
411030201101000
5134303334224
612352151504
72105626204
oct514412100
9202017084
1087168064
1145227725
1225238594
131509cc49
14b810b04
1579bc894
hex5321440

87168064 has 28 divisors (see below), whose sum is σ = 173895004. Its totient is φ = 43352064.

The previous prime is 87168043. The next prime is 87168071. The reversal of 87168064 is 46086178.

It can be written as a sum of positive squares in 2 ways, for example, as 64128064 + 23040000 = 8008^2 + 4800^2 .

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, 8824 + ... + 15880.

Almost surely, 287168064 is an apocalyptic number.

It is an amenable number.

87168064 is a deficient number, since it is larger than the sum of its proper divisors (86726940).

87168064 is a wasteful number, since it uses less digits than its factorization.

87168064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7262 (or 7252 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 87168064 is about 9336.3838824247. The cubic root of 87168064 is about 443.3899041510.

The spelling of 87168064 in words is "eighty-seven million, one hundred sixty-eight thousand, sixty-four".

Divisors: 1 2 4 8 16 32 64 193 386 772 1544 3088 6176 7057 12352 14114 28228 56456 112912 225824 451648 1362001 2724002 5448004 10896008 21792016 43584032 87168064