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87624416 = 2511892797
BaseRepresentation
bin1010011100100…
…00101011100000
320002212210002202
411032100223200
5134412440131
612410032332
72112536525
oct516205340
9202783082
1087624416
1145509580
12254186a8
13151cc889
14b8cd14c
157a5cbcb
hex5390ae0

87624416 has 48 divisors (see below), whose sum is σ = 190375920. Its totient is φ = 39367680.

The previous prime is 87624413. The next prime is 87624431. The reversal of 87624416 is 61442678.

It is a self number, because there is not a number n which added to its sum of digits gives 87624416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87624413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29930 + ... + 32726.

It is an arithmetic number, because the mean of its divisors is an integer number (3966165).

Almost surely, 287624416 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 87624416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95187960).

87624416 is an abundant number, since it is smaller than the sum of its proper divisors (102751504).

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

87624416 is a wasteful number, since it uses less digits than its factorization.

87624416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907 (or 2899 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 87624416 is about 9360.7914195329. The cubic root of 87624416 is about 444.1623192463.

The spelling of 87624416 in words is "eighty-seven million, six hundred twenty-four thousand, four hundred sixteen".

Divisors: 1 2 4 8 11 16 22 32 44 88 89 176 178 352 356 712 979 1424 1958 2797 2848 3916 5594 7832 11188 15664 22376 30767 31328 44752 61534 89504 123068 246136 248933 492272 497866 984544 995732 1991464 2738263 3982928 5476526 7965856 10953052 21906104 43812208 87624416