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52120365 = 3511315881
BaseRepresentation
bin1100011011010…
…0101100101101
310122001222200220
43012310230231
5101320322430
65101041553
71202005263
oct306645455
9118058626
1052120365
1127469890
12155562b9
13aa4b56b
146cca433
154898110
hex31b4b2d

52120365 has 16 divisors (see below), whose sum is σ = 90974016. Its totient is φ = 25270400.

The previous prime is 52120339. The next prime is 52120381. The reversal of 52120365 is 56302125.

It is not a de Polignac number, because 52120365 - 26 = 52120301 is a prime.

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, 157776 + ... + 158105.

It is an arithmetic number, because the mean of its divisors is an integer number (5685876).

Almost surely, 252120365 is an apocalyptic number.

52120365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52120365 is a deficient number, since it is larger than the sum of its proper divisors (38853651).

52120365 is a wasteful number, since it uses less digits than its factorization.

52120365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315900.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 52120365 is about 7219.4435381129. The cubic root of 52120365 is about 373.5388833175.

The spelling of 52120365 in words is "fifty-two million, one hundred twenty thousand, three hundred sixty-five".

Divisors: 1 3 5 11 15 33 55 165 315881 947643 1579405 3474691 4738215 10424073 17373455 52120365