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87948872 = 231119232287
BaseRepresentation
bin1010011110111…
…11111001001000
320010111021011122
411033133321020
5140003330442
612421014412
72115360464
oct517377110
9203437148
1087948872
1145710320
1225554408
13152b446b
14b9754a4
157ac3dd2
hex53dfe48

87948872 has 64 divisors (see below), whose sum is σ = 197683200. Its totient is φ = 36210240.

The previous prime is 87948869. The next prime is 87948899. The reversal of 87948872 is 27884978.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37313 + ... + 39599.

It is an arithmetic number, because the mean of its divisors is an integer number (3088800).

Almost surely, 287948872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87948872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98841600).

87948872 is an abundant number, since it is smaller than the sum of its proper divisors (109734328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87948872 is a wasteful number, since it uses less digits than its factorization.

87948872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346 (or 2342 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 53.

The square root of 87948872 is about 9378.1059921500. The cubic root of 87948872 is about 444.7098592634.

The spelling of 87948872 in words is "eighty-seven million, nine hundred forty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 11 19 22 23 38 44 46 76 88 92 152 184 209 253 418 437 506 836 874 1012 1672 1748 2024 2287 3496 4574 4807 9148 9614 18296 19228 25157 38456 43453 50314 52601 86906 100628 105202 173812 201256 210404 347624 420808 477983 578611 955966 999419 1157222 1911932 1998838 2314444 3823864 3997676 4628888 7995352 10993609 21987218 43974436 87948872