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87132916 = 22136192707
BaseRepresentation
bin1010011000110…
…00101011110100
320001221210220001
411030120223310
5134301223131
612351321044
72105421553
oct514305364
9201853801
1087132916
1145203282
1225220184
1315089c50
14b801d9a
1579b2261
hex5318af4

87132916 has 24 divisors (see below), whose sum is σ = 164538080. Its totient is φ = 40135392.

The previous prime is 87132853. The next prime is 87132923. The reversal of 87132916 is 61923178.

It is a congruent number.

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, 30835 + ... + 33541.

Almost surely, 287132916 is an apocalyptic number.

It is an amenable number.

87132916 is a deficient number, since it is larger than the sum of its proper divisors (77405164).

87132916 is a wasteful number, since it uses less digits than its factorization.

87132916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343 (or 3341 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 87132916 is about 9334.5013792918. The cubic root of 87132916 is about 443.3303014221.

The spelling of 87132916 in words is "eighty-seven million, one hundred thirty-two thousand, nine hundred sixteen".

Divisors: 1 2 4 13 26 52 619 1238 2476 2707 5414 8047 10828 16094 32188 35191 70382 140764 1675633 3351266 6702532 21783229 43566458 87132916