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52807244 = 22771101263
BaseRepresentation
bin1100100101110…
…0011001001100
310200100212220212
43021130121030
5102004312434
65123501552
71210565660
oct311343114
9120325825
1052807244
1127898956
12158278b8
13ac2c0b9
1470288a0
1549818ce
hex325c64c

52807244 has 48 divisors (see below), whose sum is σ = 108573696. Its totient is φ = 22008000.

The previous prime is 52807211. The next prime is 52807247. The reversal of 52807244 is 44270825.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 52807244.

It is not an unprimeable number, because it can be changed into a prime (52807247) 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, 200657 + ... + 200919.

It is an arithmetic number, because the mean of its divisors is an integer number (2261952).

Almost surely, 252807244 is an apocalyptic number.

It is an amenable number.

52807244 is an abundant number, since it is smaller than the sum of its proper divisors (55766452).

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

52807244 is a wasteful number, since it uses less digits than its factorization.

52807244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 52807244 is about 7266.8592940830. The cubic root of 52807244 is about 375.1726470210.

The spelling of 52807244 in words is "fifty-two million, eight hundred seven thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 71 101 142 202 263 284 404 497 526 707 994 1052 1414 1841 1988 2828 3682 7171 7364 14342 18673 26563 28684 37346 50197 53126 74692 100394 106252 130711 185941 200788 261422 371882 522844 743764 1885973 3771946 7543892 13201811 26403622 52807244