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87061371 = 3231261759
BaseRepresentation
bin1010011000001…
…11001101111011
320001211011202020
411030013031323
5134241430441
612350005523
72105003145
oct514071573
9201734666
1087061371
1145164551
12251a68a3
1315063507
14b7c3c95
15799ae66
hex530737b

87061371 has 8 divisors (see below), whose sum is σ = 121128960. Its totient is φ = 55517352.

The previous prime is 87061339. The next prime is 87061391. The reversal of 87061371 is 17316078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87061371 - 25 = 87061339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87061321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630811 + ... + 630948.

It is an arithmetic number, because the mean of its divisors is an integer number (15141120).

Almost surely, 287061371 is an apocalyptic number.

87061371 is a deficient number, since it is larger than the sum of its proper divisors (34067589).

87061371 is a wasteful number, since it uses less digits than its factorization.

87061371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261785.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 87061371 is about 9330.6683040391. The cubic root of 87061371 is about 443.2089284168.

The spelling of 87061371 in words is "eighty-seven million, sixty-one thousand, three hundred seventy-one".

Divisors: 1 3 23 69 1261759 3785277 29020457 87061371