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87076090 = 2517350333
BaseRepresentation
bin1010011000010…
…10110011111010
320001211220221101
411030022303322
5134242413330
612350202014
72105064103
oct514126372
9201756841
1087076090
1145174612
12251b330a
131506a11a
14b7c93aa
1579a04ca
hex530acfa

87076090 has 16 divisors (see below), whose sum is σ = 157646088. Its totient is φ = 34628416.

The previous prime is 87076063. The next prime is 87076109. The reversal of 87076090 is 9067078.

It can be written as a sum of positive squares in 4 ways, for example, as 86657481 + 418609 = 9309^2 + 647^2 .

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, 23437 + ... + 26896.

Almost surely, 287076090 is an apocalyptic number.

87076090 is a deficient number, since it is larger than the sum of its proper divisors (70569998).

87076090 is a wasteful number, since it uses less digits than its factorization.

87076090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50513.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 87076090 is about 9331.4570137787. The cubic root of 87076090 is about 443.2339039964.

The spelling of 87076090 in words is "eighty-seven million, seventy-six thousand, ninety".

Divisors: 1 2 5 10 173 346 865 1730 50333 100666 251665 503330 8707609 17415218 43538045 87076090