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52056245 = 523219681
BaseRepresentation
bin1100011010010…
…1000010110101
310121221201202002
43012211002311
5101311244440
65055425045
71201320323
oct306450265
9117851662
1052056245
112742569a
1215525185
13aa28317
146cb0d13
154884115
hex31a50b5

52056245 has 12 divisors (see below), whose sum is σ = 65304876. Its totient is φ = 39832320.

The previous prime is 52056233. The next prime is 52056269. The reversal of 52056245 is 54265025.

It can be written as a sum of positive squares in 2 ways, for example, as 38850289 + 13205956 = 6233^2 + 3634^2 .

It is not a de Polignac number, because 52056245 - 210 = 52055221 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 7196 + ... + 12485.

It is an arithmetic number, because the mean of its divisors is an integer number (5442073).

Almost surely, 252056245 is an apocalyptic number.

It is an amenable number.

52056245 is a deficient number, since it is larger than the sum of its proper divisors (13248631).

52056245 is a wasteful number, since it uses less digits than its factorization.

52056245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19732 (or 19709 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 52056245 is about 7215.0013860013. The cubic root of 52056245 is about 373.3856409666.

It can be divided in two parts, 520 and 56245, that added together give a palindrome (56765).

The spelling of 52056245 in words is "fifty-two million, fifty-six thousand, two hundred forty-five".

Divisors: 1 5 23 115 529 2645 19681 98405 452663 2263315 10411249 52056245