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52642472 = 2317387077
BaseRepresentation
bin1100100011010…
…0001010101000
310200001111220012
43020310022220
5101434024342
65120151052
71206311411
oct310641250
9120044805
1052642472
1127796083
1215768488
13aba20bc
146dc4808
15494cb82
hex32342a8

52642472 has 16 divisors (see below), whose sum is σ = 104511060. Its totient is φ = 24772864.

The previous prime is 52642463. The next prime is 52642477. The reversal of 52642472 is 27424625.

It can be written as a sum of positive squares in 2 ways, for example, as 50608996 + 2033476 = 7114^2 + 1426^2 .

It is not an unprimeable number, because it can be changed into a prime (52642477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193403 + ... + 193674.

Almost surely, 252642472 is an apocalyptic number.

It is an amenable number.

52642472 is a deficient number, since it is larger than the sum of its proper divisors (51868588).

52642472 is a wasteful number, since it uses less digits than its factorization.

52642472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387100 (or 387096 counting only the distinct ones).

The product of its digits is 26880, while the sum is 32.

The square root of 52642472 is about 7255.5132141014. The cubic root of 52642472 is about 374.7820291797.

The spelling of 52642472 in words is "fifty-two million, six hundred forty-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 17 34 68 136 387077 774154 1548308 3096616 6580309 13160618 26321236 52642472