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52182864 = 2432362381
BaseRepresentation
bin1100011100001…
…1111101010000
310122012011102200
43013003331100
5101324322424
65102243200
71202355426
oct307037520
9118164380
1052182864
1127501838
1215586500
13aa70b46
146d05116
1548ab8c9
hex31c3f50

52182864 has 30 divisors (see below), whose sum is σ = 146039946. Its totient is φ = 17394240.

The previous prime is 52182857. The next prime is 52182869. The reversal of 52182864 is 46828125.

52182864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 46131264 + 6051600 = 6792^2 + 2460^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52182869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 181047 + ... + 181334.

Almost surely, 252182864 is an apocalyptic number.

It is an amenable number.

52182864 is an abundant number, since it is smaller than the sum of its proper divisors (93857082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52182864 is a wasteful number, since it uses less digits than its factorization.

52182864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362395 (or 362386 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 52182864 is about 7223.7707604824. The cubic root of 52182864 is about 373.6881306820.

The spelling of 52182864 in words is "fifty-two million, one hundred eighty-two thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 362381 724762 1087143 1449524 2174286 2899048 3261429 4348572 5798096 6522858 8697144 13045716 17394288 26091432 52182864