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52265431 = 191273641
BaseRepresentation
bin1100011101100…
…0000111010111
310122100100200201
43013120013113
5101334443211
65104121331
71203151231
oct307300727
9118310621
1052265431
1127558879
1215606247
13aa9c5ba
146d27251
1548c60c1
hex31d81d7

52265431 has 4 divisors (see below), whose sum is σ = 52539264. Its totient is φ = 51991600.

The previous prime is 52265419. The next prime is 52265441. The reversal of 52265431 is 13456225.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52265431 - 219 = 51741143 is a prime.

It is a super-2 number, since 2×522654312 = 5463350555231522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52265431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52265441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136630 + ... + 137011.

It is an arithmetic number, because the mean of its divisors is an integer number (13134816).

Almost surely, 252265431 is an apocalyptic number.

52265431 is a deficient number, since it is larger than the sum of its proper divisors (273833).

52265431 is a wasteful number, since it uses less digits than its factorization.

52265431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273832.

The product of its digits is 7200, while the sum is 28.

The square root of 52265431 is about 7229.4834531936. The cubic root of 52265431 is about 373.8851177553.

The spelling of 52265431 in words is "fifty-two million, two hundred sixty-five thousand, four hundred thirty-one".

Divisors: 1 191 273641 52265431