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87092930 = 2567312941
BaseRepresentation
bin1010011000011…
…10111011000010
320001212210001002
411030032323002
5134243433210
612350412002
72105164151
oct514167302
9201783032
1087092930
1145186231
1225201002
13150749a2
14b7d1598
1579a54a5
hex530eec2

87092930 has 16 divisors (see below), whose sum is σ = 157012344. Its totient is φ = 34782720.

The previous prime is 87092923. The next prime is 87092953. The reversal of 87092930 is 3929078.

It can be written as a sum of positive squares in 4 ways, for example, as 72812089 + 14280841 = 8533^2 + 3779^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260 + ... + 13200.

Almost surely, 287092930 is an apocalyptic number.

87092930 is a deficient number, since it is larger than the sum of its proper divisors (69919414).

87092930 is a wasteful number, since it uses less digits than its factorization.

87092930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13621.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 87092930 is about 9332.3592944121. The cubic root of 87092930 is about 443.2624750918.

The spelling of 87092930 in words is "eighty-seven million, ninety-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 673 1346 3365 6730 12941 25882 64705 129410 8709293 17418586 43546465 87092930