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87048657 = 3283116531
BaseRepresentation
bin1010011000001…
…00000111010001
320001210112022100
411030010013101
5134241024112
612345431013
72104621113
oct514040721
9201715270
1087048657
1145155a43
122519b469
131505a7a7
14b7bd3b3
1579972dc
hex53041d1

87048657 has 12 divisors (see below), whose sum is σ = 127252944. Its totient is φ = 57332760.

The previous prime is 87048649. The next prime is 87048667. The reversal of 87048657 is 75684078.

It is not a de Polignac number, because 87048657 - 23 = 87048649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87048667) 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, 57519 + ... + 59012.

It is an arithmetic number, because the mean of its divisors is an integer number (10604412).

Almost surely, 287048657 is an apocalyptic number.

It is an amenable number.

87048657 is a deficient number, since it is larger than the sum of its proper divisors (40204287).

87048657 is a wasteful number, since it uses less digits than its factorization.

87048657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116620 (or 116617 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 87048657 is about 9329.9869774829. The cubic root of 87048657 is about 443.1873527069.

The spelling of 87048657 in words is "eighty-seven million, forty-eight thousand, six hundred fifty-seven".

Divisors: 1 3 9 83 249 747 116531 349593 1048779 9672073 29016219 87048657