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52052457 = 3191316971
BaseRepresentation
bin1100011010010…
…0000111101001
310121221112112210
43012210013221
5101311134312
65055355333
71201303302
oct306440751
9117845483
1052052457
1127422866
1215522b49
13aa26692
146cad7a9
154882e3c
hex31a41e9

52052457 has 16 divisors (see below), whose sum is σ = 73624320. Its totient is φ = 32619600.

The previous prime is 52052449. The next prime is 52052509. The reversal of 52052457 is 75425025.

It is not a de Polignac number, because 52052457 - 23 = 52052449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52052417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3982 + ... + 10952.

It is an arithmetic number, because the mean of its divisors is an integer number (4601520).

Almost surely, 252052457 is an apocalyptic number.

52052457 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

52052457 is a deficient number, since it is larger than the sum of its proper divisors (21571863).

52052457 is a wasteful number, since it uses less digits than its factorization.

52052457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124.

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 52052457 is about 7214.7388726135. The cubic root of 52052457 is about 373.3765839738.

The spelling of 52052457 in words is "fifty-two million, fifty-two thousand, four hundred fifty-seven".

Divisors: 1 3 19 57 131 393 2489 6971 7467 20913 132449 397347 913201 2739603 17350819 52052457