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52705615613 = 743730923957
BaseRepresentation
bin110001000101011111…
…111101111011111101
312001001010220200111112
4301011133331323331
51330420114144423
640113532131405
73544044224630
oct610537757375
9161033820445
1052705615613
1120396a45112
12a26b006b65
134c7c471501
14279dbc5c17
151587188a78
hexc457fdefd

52705615613 has 16 divisors (see below), whose sum is σ = 61646808960. Its totient is φ = 44117752896.

The previous prime is 52705615549. The next prime is 52705615637. The reversal of 52705615613 is 31651650725.

It is not a de Polignac number, because 52705615613 - 26 = 52705615549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52705615643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2188031 + ... + 2211987.

It is an arithmetic number, because the mean of its divisors is an integer number (3852925560).

Almost surely, 252705615613 is an apocalyptic number.

It is an amenable number.

52705615613 is a deficient number, since it is larger than the sum of its proper divisors (8941193347).

52705615613 is a wasteful number, since it uses less digits than its factorization.

52705615613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31316.

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 52705615613 in words is "fifty-two billion, seven hundred five million, six hundred fifteen thousand, six hundred thirteen".

Divisors: 1 7 43 301 7309 23957 51163 167699 314287 1030151 2200009 7211057 175101713 1225711991 7529373659 52705615613