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52130634661 = 759711777807
BaseRepresentation
bin110000100011001110…
…100101101110100101
311222120001222121220201
4300203032211232211
51323230420302121
635540512230501
73523563040420
oct604316455645
9158501877821
1052130634661
1120121425446
12a12a53b431
134bba2c56b1
1427476b29b7
15155195de91
hexc233a5ba5

52130634661 has 16 divisors (see below), whose sum is σ = 61441044480. Its totient is φ = 43307354160.

The previous prime is 52130634617. The next prime is 52130634679. The reversal of 52130634661 is 16643603125.

52130634661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52130634661 - 215 = 52130601893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52130634661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52130634461) 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, 859581 + ... + 918226.

It is an arithmetic number, because the mean of its divisors is an integer number (3840065280).

Almost surely, 252130634661 is an apocalyptic number.

It is an amenable number.

52130634661 is a deficient number, since it is larger than the sum of its proper divisors (9310409819).

52130634661 is a wasteful number, since it uses less digits than its factorization.

52130634661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777944.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 52130634661 in words is "fifty-two billion, one hundred thirty million, six hundred thirty-four thousand, six hundred sixty-one".

Divisors: 1 7 59 71 413 497 4189 29323 1777807 12444649 104890613 126224297 734234291 883570079 7447233523 52130634661