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52957312 = 271724337
BaseRepresentation
bin1100101000000…
…1000010000000
310200122111202221
43022001002000
5102024113222
65131020424
71212062332
oct312010200
9120574687
1052957312
1127990681
121589a714
13ac824b5
147067452
1549b10c7
hex3281080

52957312 has 32 divisors (see below), whose sum is σ = 111711420. Its totient is φ = 24920064.

The previous prime is 52957309. The next prime is 52957319. The reversal of 52957312 is 21375925.

It can be written as a sum of positive squares in 2 ways, for example, as 39237696 + 13719616 = 6264^2 + 3704^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52957319) 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, 9993 + ... + 14344.

Almost surely, 252957312 is an apocalyptic number.

It is an amenable number.

52957312 is an abundant number, since it is smaller than the sum of its proper divisors (58754108).

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

52957312 is a wasteful number, since it uses less digits than its factorization.

52957312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24368 (or 24356 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 52957312 is about 7277.1774748181. The cubic root of 52957312 is about 375.5277003306.

The spelling of 52957312 in words is "fifty-two million, nine hundred fifty-seven thousand, three hundred twelve".

Divisors: 1 2 4 8 16 17 32 34 64 68 128 136 272 544 1088 2176 24337 48674 97348 194696 389392 413729 778784 827458 1557568 1654916 3115136 3309832 6619664 13239328 26478656 52957312