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87908382 = 23315710369
BaseRepresentation
bin1010011110101…
…10000000011110
320010102012122000
411033112000132
5140001032012
612420103130
72115131442
oct517260036
9203365560
1087908382
1145692961
1225534aa6
131529bbc3
14b964822
157ab6ddc
hex53d601e

87908382 has 32 divisors (see below), whose sum is σ = 196615200. Its totient is φ = 29113344.

The previous prime is 87908357. The next prime is 87908399. The reversal of 87908382 is 28380978.

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 15 ways as a sum of consecutive naturals, for example, 3294 + ... + 13662.

It is an arithmetic number, because the mean of its divisors is an integer number (6144225).

Almost surely, 287908382 is an apocalyptic number.

87908382 is an abundant number, since it is smaller than the sum of its proper divisors (108706818).

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

87908382 is a wasteful number, since it uses less digits than its factorization.

87908382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10537 (or 10531 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 87908382 is about 9375.9469921710. The cubic root of 87908382 is about 444.6416034471.

The spelling of 87908382 in words is "eighty-seven million, nine hundred eight thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 27 54 157 314 471 942 1413 2826 4239 8478 10369 20738 31107 62214 93321 186642 279963 559926 1627933 3255866 4883799 9767598 14651397 29302794 43954191 87908382