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87017296 = 245438581
BaseRepresentation
bin1010010111111…
…00011101010000
320001201221021211
411023330131100
5134234023141
612345025504
72104430512
oct513743520
9201657254
1087017296
1145134423
1225185294
1315049432
14b7b1bb2
15798cd81
hex52fc750

87017296 has 10 divisors (see below), whose sum is σ = 168596042. Its totient is φ = 43508640.

The previous prime is 87017291. The next prime is 87017297. The reversal of 87017296 is 69271078.

It can be written as a sum of positive squares in only one way, i.e., 83905600 + 3111696 = 9160^2 + 1764^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87017291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2719275 + ... + 2719306.

Almost surely, 287017296 is an apocalyptic number.

It is an amenable number.

87017296 is a deficient number, since it is larger than the sum of its proper divisors (81578746).

87017296 is a wasteful number, since it uses less digits than its factorization.

87017296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5438589 (or 5438583 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 87017296 is about 9328.3061699325. The cubic root of 87017296 is about 443.1341239784.

The spelling of 87017296 in words is "eighty-seven million, seventeen thousand, two hundred ninety-six".

Divisors: 1 2 4 8 16 5438581 10877162 21754324 43508648 87017296