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52402812 = 22371156713
BaseRepresentation
bin1100011111100…
…1101001111100
310122121100010220
43013321221330
5101403342222
65111101340
71204262610
oct307715174
9118540126
1052402812
1127642010
1215671850
13ab19ca7
146d61340
154901b5c
hex31f9a7c

52402812 has 48 divisors (see below), whose sum is σ = 152447232. Its totient is φ = 13610880.

The previous prime is 52402783. The next prime is 52402837. The reversal of 52402812 is 21820425.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27433 + ... + 29280.

It is an arithmetic number, because the mean of its divisors is an integer number (3175984).

Almost surely, 252402812 is an apocalyptic number.

It is an amenable number.

52402812 is an abundant number, since it is smaller than the sum of its proper divisors (100044420).

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

52402812 is a wasteful number, since it uses less digits than its factorization.

52402812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56738 (or 56736 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 52402812 is about 7238.9786572416. The cubic root of 52402812 is about 374.2124199607.

The spelling of 52402812 in words is "fifty-two million, four hundred two thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 56713 113426 170139 226852 340278 396991 623843 680556 793982 1190973 1247686 1587964 1871529 2381946 2495372 3743058 4366901 4763892 7486116 8733802 13100703 17467604 26201406 52402812