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53256973 = 721198807
BaseRepresentation
bin1100101100101…
…0001100001101
310201012201211111
43023022030031
5102113210343
65141252021
71214451100
oct313121415
9121181744
1053256973
1128075830
1215a04011
13b058a03
147104737
154a1ec9d
hex32ca30d

53256973 has 12 divisors (see below), whose sum is σ = 67584672. Its totient is φ = 41498520.

The previous prime is 53256967. The next prime is 53256989. The reversal of 53256973 is 37965235.

It is not a de Polignac number, because 53256973 - 25 = 53256941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53256473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48865 + ... + 49942.

It is an arithmetic number, because the mean of its divisors is an integer number (5632056).

Almost surely, 253256973 is an apocalyptic number.

It is an amenable number.

53256973 is a deficient number, since it is larger than the sum of its proper divisors (14327699).

53256973 is a wasteful number, since it uses less digits than its factorization.

53256973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98832 (or 98825 counting only the distinct ones).

The product of its digits is 170100, while the sum is 40.

The square root of 53256973 is about 7297.7375261104. The cubic root of 53256973 is about 376.2346811863.

The spelling of 53256973 in words is "fifty-three million, two hundred fifty-six thousand, nine hundred seventy-three".

Divisors: 1 7 11 49 77 539 98807 691649 1086877 4841543 7608139 53256973