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53747116072013 = 721384375378449
BaseRepresentation
bin11000011100001111110011…
…10000101101110001001101
321001022011200221010101111002
430032013321300231301031
524021043043203301023
6310151030111110045
714215046432463200
oct1416077160556115
9231264627111432
1053747116072013
1116142029924751
126040674512325
1323cb43cb28360
14d3b535105937
15633144a38b28
hex30e1f9c2dc4d

53747116072013 has 12 divisors (see below), whose sum is σ = 67331552003100. Its totient is φ = 42525190737792.

The previous prime is 53747116071991. The next prime is 53747116072019. The reversal of 53747116072013 is 31027061174735.

It can be written as a sum of positive squares in 2 ways, for example, as 12703899448009 + 41043216624004 = 3564253^2 + 6406498^2 .

It is not a de Polignac number, because 53747116072013 - 28 = 53747116071757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53747116072019) 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, 42187688588 + ... + 42187689861.

It is an arithmetic number, because the mean of its divisors is an integer number (5610962666925).

Almost surely, 253747116072013 is an apocalyptic number.

It is an amenable number.

53747116072013 is a deficient number, since it is larger than the sum of its proper divisors (13584435931087).

53747116072013 is a wasteful number, since it uses less digits than its factorization.

53747116072013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84375378476 (or 84375378469 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 53747116072013 in words is "fifty-three trillion, seven hundred forty-seven billion, one hundred sixteen million, seventy-two thousand, thirteen".

Divisors: 1 7 13 49 91 637 84375378449 590627649143 1096879919837 4134393544001 7678159438859 53747116072013