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87068956 = 22133154013
BaseRepresentation
bin1010011000010…
…01000100011100
320001211120011011
411030021010130
5134242201311
612350105004
72105034232
oct514110434
9201746134
1087068956
114516a217
12251ab164
1315066ac0
14b7c6952
15799d321
hex530911c

87068956 has 24 divisors (see below), whose sum is σ = 169387904. Its totient is φ = 38888640.

The previous prime is 87068929. The next prime is 87068959. The reversal of 87068956 is 65986078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87068959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25395 + ... + 28618.

Almost surely, 287068956 is an apocalyptic number.

It is an amenable number.

87068956 is a deficient number, since it is larger than the sum of its proper divisors (82318948).

87068956 is a wasteful number, since it uses less digits than its factorization.

87068956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54061 (or 54059 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 87068956 is about 9331.0747505312. The cubic root of 87068956 is about 443.2217991923.

The spelling of 87068956 in words is "eighty-seven million, sixty-eight thousand, nine hundred fifty-six".

Divisors: 1 2 4 13 26 31 52 62 124 403 806 1612 54013 108026 216052 702169 1404338 1674403 2808676 3348806 6697612 21767239 43534478 87068956