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87328906 = 2797107601
BaseRepresentation
bin1010011010010…
…00100010001010
320002022202201221
411031020202022
5134324011111
612355432254
72110166140
oct515104212
9202282657
1087328906
1145327555
12252b568a
1315128212
14b853590
157a00371
hex534888a

87328906 has 32 divisors (see below), whose sum is σ = 152917632. Its totient is φ = 36633600.

The previous prime is 87328897. The next prime is 87328919. The reversal of 87328906 is 60982378.

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, 145006 + ... + 145606.

It is an arithmetic number, because the mean of its divisors is an integer number (4778676).

Almost surely, 287328906 is an apocalyptic number.

87328906 is a deficient number, since it is larger than the sum of its proper divisors (65588726).

87328906 is a wasteful number, since it uses less digits than its factorization.

87328906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 87328906 is about 9344.9936329566. The cubic root of 87328906 is about 443.6624500691.

The spelling of 87328906 in words is "eighty-seven million, three hundred twenty-eight thousand, nine hundred six".

Divisors: 1 2 7 14 97 107 194 214 601 679 749 1202 1358 1498 4207 8414 10379 20758 58297 64307 72653 116594 128614 145306 408079 450149 816158 900298 6237779 12475558 43664453 87328906