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53612293 = 77658899
BaseRepresentation
bin1100110010000…
…0111100000101
310201212210020111
43030200330011
5102211043133
65153033021
71220461030
oct314407405
9121783214
1053612293
1128298789
1215b55771
13b151667
147198017
154a901cd
hex3320f05

53612293 has 4 divisors (see below), whose sum is σ = 61271200. Its totient is φ = 45953388.

The previous prime is 53612269. The next prime is 53612327. The reversal of 53612293 is 39221635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53612293 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 (53612263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3829443 + ... + 3829456.

It is an arithmetic number, because the mean of its divisors is an integer number (15317800).

Almost surely, 253612293 is an apocalyptic number.

It is an amenable number.

53612293 is a deficient number, since it is larger than the sum of its proper divisors (7658907).

53612293 is an equidigital number, since it uses as much as digits as its factorization.

53612293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7658906.

The product of its digits is 9720, while the sum is 31.

The square root of 53612293 is about 7322.0415868800. The cubic root of 53612293 is about 377.0695483892.

The spelling of 53612293 in words is "fifty-three million, six hundred twelve thousand, two hundred ninety-three".

Divisors: 1 7 7658899 53612293