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52868705813 = 7112315034003
BaseRepresentation
bin110001001111001110…
…000110111000010101
312001110111210112012022
4301033032012320111
51331233342041223
640142035502525
73551064404360
oct611716067025
9161414715168
1052868705813
1120470008200
12a2b5757a45
134ca71a46a1
1427b771b0d7
151596651ac8
hexc4f386e15

52868705813 has 48 divisors (see below), whose sum is σ = 68709408768. Its totient is φ = 39778279200.

The previous prime is 52868705767. The next prime is 52868705839. The reversal of 52868705813 is 31850786825.

52868705813 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 52868705813 - 26 = 52868705749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52868705843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13205270 + ... + 13209272.

It is an arithmetic number, because the mean of its divisors is an integer number (1431446016).

Almost surely, 252868705813 is an apocalyptic number.

It is an amenable number.

52868705813 is a deficient number, since it is larger than the sum of its proper divisors (15840702955).

52868705813 is a wasteful number, since it uses less digits than its factorization.

52868705813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566 (or 4555 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 53.

The spelling of 52868705813 in words is "fifty-two billion, eight hundred sixty-eight million, seven hundred five thousand, eight hundred thirteen".

Divisors: 1 7 11 31 77 121 217 341 503 847 2387 3521 3751 4003 5533 15593 26257 28021 38731 44033 60863 109151 124093 171523 308231 426041 484363 868651 1200661 1365023 1886753 2013509 3390541 9555161 13207271 14094563 15015253 22148599 62418779 105106771 155040193 243634589 436931453 686606569 1705442123 4806245983 7552672259 52868705813