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52452072 = 23321742853
BaseRepresentation
bin1100100000010…
…1101011101000
310122200211201100
43020011223220
5101411431242
65112121400
71204556331
oct310055350
9118624640
1052452072
1127676022
1215696260
13ab3653a
146d75288
15491154c
hex3205ae8

52452072 has 48 divisors (see below), whose sum is σ = 150417540. Its totient is φ = 16455168.

The previous prime is 52452019. The next prime is 52452077. The reversal of 52452072 is 27025425.

It can be written as a sum of positive squares in 2 ways, for example, as 39012516 + 13439556 = 6246^2 + 3666^2 .

It is not an unprimeable number, because it can be changed into a prime (52452077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20203 + ... + 22650.

Almost surely, 252452072 is an apocalyptic number.

It is an amenable number.

52452072 is an abundant number, since it is smaller than the sum of its proper divisors (97965468).

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

52452072 is a wasteful number, since it uses less digits than its factorization.

52452072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42882 (or 42875 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 52452072 is about 7242.3802717063. The cubic root of 52452072 is about 374.3296396929.

Adding to 52452072 its reverse (27025425), we get a palindrome (79477497).

The spelling of 52452072 in words is "fifty-two million, four hundred fifty-two thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 408 612 1224 42853 85706 128559 171412 257118 342824 385677 514236 728501 771354 1028472 1457002 1542708 2185503 2914004 3085416 4371006 5828008 6556509 8742012 13113018 17484024 26226036 52452072