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52165072 = 243260317
BaseRepresentation
bin1100011011111…
…1100111010000
310122011021000201
43012333213100
5101323240242
65102024544
71202252521
oct306774720
9118137021
1052165072
112749a433
1215578154
13aa65a0b
146cdc848
1548a64b7
hex31bf9d0

52165072 has 10 divisors (see below), whose sum is σ = 101069858. Its totient is φ = 26082528.

The previous prime is 52165067. The next prime is 52165093. The reversal of 52165072 is 27056125.

It can be written as a sum of positive squares in only one way, i.e., 48385936 + 3779136 = 6956^2 + 1944^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 52165072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1630143 + ... + 1630174.

Almost surely, 252165072 is an apocalyptic number.

It is an amenable number.

52165072 is a deficient number, since it is larger than the sum of its proper divisors (48904786).

52165072 is a wasteful number, since it uses less digits than its factorization.

52165072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260325 (or 3260319 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 52165072 is about 7222.5391656951. The cubic root of 52165072 is about 373.6456555955.

The spelling of 52165072 in words is "fifty-two million, one hundred sixty-five thousand, seventy-two".

Divisors: 1 2 4 8 16 3260317 6520634 13041268 26082536 52165072