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52881717 = 372518177
BaseRepresentation
bin1100100110111…
…0100100110101
310200111200002010
43021232210311
5102014203332
65125234433
71211326050
oct311564465
9120450063
1052881717
11279398a9
1215862a19
13ac56c75
147047a97
1549989cc
hex326e935

52881717 has 8 divisors (see below), whose sum is σ = 80581696. Its totient is φ = 30218112.

The previous prime is 52881709. The next prime is 52881733. The reversal of 52881717 is 71718825.

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

It is not a de Polignac number, because 52881717 - 23 = 52881709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52881767) 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, 1259068 + ... + 1259109.

It is an arithmetic number, because the mean of its divisors is an integer number (10072712).

Almost surely, 252881717 is an apocalyptic number.

It is an amenable number.

52881717 is a deficient number, since it is larger than the sum of its proper divisors (27699979).

52881717 is a wasteful number, since it uses less digits than its factorization.

52881717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518187.

The product of its digits is 31360, while the sum is 39.

The square root of 52881717 is about 7271.9816418910. The cubic root of 52881717 is about 375.3489303374.

The spelling of 52881717 in words is "fifty-two million, eight hundred eighty-one thousand, seven hundred seventeen".

Divisors: 1 3 7 21 2518177 7554531 17627239 52881717