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87385707 = 3242123063
BaseRepresentation
bin1010011010101…
…10011001101011
320002102122122200
411031112121223
5134332320312
612400551243
72110523553
oct515263153
9202378580
1087385707
11453661a2
1225322523
1315148026
14b86a163
157a120dc
hex535666b

87385707 has 12 divisors (see below), whose sum is σ = 126529104. Its totient is φ = 58116240.

The previous prime is 87385703. The next prime is 87385709. The reversal of 87385707 is 70758378.

87385707 is a `hidden beast` number, since 8 + 73 + 8 + 570 + 7 = 666.

It is not a de Polignac number, because 87385707 - 22 = 87385703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87385703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7743 + ... + 15320.

It is an arithmetic number, because the mean of its divisors is an integer number (10544092).

Almost surely, 287385707 is an apocalyptic number.

87385707 is a deficient number, since it is larger than the sum of its proper divisors (39143397).

87385707 is a wasteful number, since it uses less digits than its factorization.

87385707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23490 (or 23487 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 87385707 is about 9348.0322528327. The cubic root of 87385707 is about 443.7586191013.

The spelling of 87385707 in words is "eighty-seven million, three hundred eighty-five thousand, seven hundred seven".

Divisors: 1 3 9 421 1263 3789 23063 69189 207567 9709523 29128569 87385707