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53074013 = 239222067
BaseRepresentation
bin1100101001110…
…1100001011101
310200212102212012
43022131201131
5102041332023
65133321005
71213056506
oct312354135
9120772765
1053074013
1127a60323
1215936165
13acc3655
147097bad
1549d5978
hex329d85d

53074013 has 4 divisors (see below), whose sum is σ = 53296320. Its totient is φ = 52851708.

The previous prime is 53074009. The next prime is 53074061. The reversal of 53074013 is 31047035.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31047035 = 56209407.

It is a cyclic number.

It is not a de Polignac number, because 53074013 - 22 = 53074009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53074013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53074003) 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, 110795 + ... + 111272.

It is an arithmetic number, because the mean of its divisors is an integer number (13324080).

Almost surely, 253074013 is an apocalyptic number.

It is an amenable number.

53074013 is a deficient number, since it is larger than the sum of its proper divisors (222307).

53074013 is a wasteful number, since it uses less digits than its factorization.

53074013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222306.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 53074013 is about 7285.1913495803. The cubic root of 53074013 is about 375.8033456516.

The spelling of 53074013 in words is "fifty-three million, seventy-four thousand, thirteen".

Divisors: 1 239 222067 53074013