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52525764 = 22321917639
BaseRepresentation
bin1100100001011…
…1101011000100
310122211120210200
43020113223010
5101421311024
65113450500
71205314224
oct310275304
9118746720
1052525764
1127716425
1215710a30
13ab60c45
146d94084
1549282c9
hex3217ac4

52525764 has 36 divisors (see below), whose sum is σ = 133486080. Its totient is φ = 17414640.

The previous prime is 52525727. The next prime is 52525771. The reversal of 52525764 is 46752525.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3057 + ... + 10695.

Almost surely, 252525764 is an apocalyptic number.

52525764 is the 4584-th heptagonal number.

It is an amenable number.

52525764 is an abundant number, since it is smaller than the sum of its proper divisors (80960316).

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

52525764 is a wasteful number, since it uses less digits than its factorization.

52525764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7840 (or 7835 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 52525764 is about 7247.4660399342. The cubic root of 52525764 is about 374.5048611879.

The spelling of 52525764 in words is "fifty-two million, five hundred twenty-five thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 9 12 18 36 191 382 573 764 1146 1719 2292 3438 6876 7639 15278 22917 30556 45834 68751 91668 137502 275004 1459049 2918098 4377147 5836196 8754294 13131441 17508588 26262882 52525764