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87072695 = 517414539
BaseRepresentation
bin1010011000010…
…01111110110111
320001211202021122
411030021332313
5134242311240
612350134155
72105051153
oct514117667
9201752248
1087072695
1145172006
12251b135b
1315068708
14b7c8063
15799e4b5
hex5309fb7

87072695 has 4 divisors (see below), whose sum is σ = 104487240. Its totient is φ = 69658152.

The previous prime is 87072677. The next prime is 87072709. The reversal of 87072695 is 59627078.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87072695 - 222 = 82878391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8707265 + ... + 8707274.

It is an arithmetic number, because the mean of its divisors is an integer number (26121810).

Almost surely, 287072695 is an apocalyptic number.

87072695 is a deficient number, since it is larger than the sum of its proper divisors (17414545).

87072695 is a wasteful number, since it uses less digits than its factorization.

87072695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17414544.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 87072695 is about 9331.2751004351. The cubic root of 87072695 is about 443.2281435224.

The spelling of 87072695 in words is "eighty-seven million, seventy-two thousand, six hundred ninety-five".

Divisors: 1 5 17414539 87072695