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87675728 = 2471941201
BaseRepresentation
bin1010011100111…
…01001101010000
320002222101111012
411032131031100
5134421110403
612411110052
72113142240
oct516351520
9202871435
1087675728
1145544088
1225442328
131521a03a
14b903b20
157a6ced8
hex539d350

87675728 has 40 divisors (see below), whose sum is σ = 204361920. Its totient is φ = 35596800.

The previous prime is 87675713. The next prime is 87675739. The reversal of 87675728 is 82757678.

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, 18473 + ... + 22728.

It is an arithmetic number, because the mean of its divisors is an integer number (5109048).

Almost surely, 287675728 is an apocalyptic number.

It is an amenable number.

87675728 is an abundant number, since it is smaller than the sum of its proper divisors (116686192).

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

87675728 is a wasteful number, since it uses less digits than its factorization.

87675728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41235 (or 41229 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 50.

The square root of 87675728 is about 9363.5318123024. The cubic root of 87675728 is about 444.2490013634.

The spelling of 87675728 in words is "eighty-seven million, six hundred seventy-five thousand, seven hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 19 28 38 56 76 112 133 152 266 304 532 1064 2128 41201 82402 164804 288407 329608 576814 659216 782819 1153628 1565638 2307256 3131276 4614512 5479733 6262552 10959466 12525104 21918932 43837864 87675728