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52664049 = 32412592
BaseRepresentation
bin1100100011100…
…1011011110001
310200002121111100
43020321123301
5101440222144
65120435013
71206431334
oct310713361
9120077440
1052664049
1127800309
1215778a69
13ababb79
146dcc61b
154954269
hex32396f1

52664049 has 27 divisors (see below), whose sum is σ = 79314859. Its totient is φ = 33672480.

The previous prime is 52664047. The next prime is 52664069. The reversal of 52664049 is 94046625.

The square root of 52664049 is 7257.

It is a perfect power (a square), and thus also a powerful number.

52664049 is a `hidden beast` number, since 5 + 2 + 6 + 640 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2537649 + 50126400 = 1593^2 + 7080^2 .

It is not a de Polignac number, because 52664049 - 21 = 52664047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52664041) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 892582 + ... + 892640.

Almost surely, 252664049 is an apocalyptic number.

52664049 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

52664049 is the 7257-th square number.

52664049 is the 3629-th centered octagonal number.

It is an amenable number.

52664049 is a deficient number, since it is larger than the sum of its proper divisors (26650810).

52664049 is an equidigital number, since it uses as much as digits as its factorization.

52664049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The cubic root of 52664049 is about 374.8332271759.

Multiplying 52664049 by its sum of digits (36), we get a square (1895905764 = 435422).

The spelling of 52664049 in words is "fifty-two million, six hundred sixty-four thousand, forty-nine".

Divisors: 1 3 9 41 59 123 177 369 531 1681 2419 3481 5043 7257 10443 15129 21771 31329 99179 142721 297537 428163 892611 1284489 5851561 17554683 52664049