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54708641631 = 3277319796011
BaseRepresentation
bin110010111100111000…
…111001111101011111
312020012201221221122100
4302330320321331133
51344020403013011
641044404020143
73644505531630
oct627470717537
9166181857570
1054708641631
1121224669216
12a729991653
13520b437cc7
14290dc2b887
151652e47d56
hexcbce39f5f

54708641631 has 48 divisors (see below), whose sum is σ = 91611336960. Its totient is φ = 30813125760.

The previous prime is 54708641609. The next prime is 54708641651. The reversal of 54708641631 is 13614680745.

54708641631 is a `hidden beast` number, since 5 + 4 + 7 + 0 + 8 + 6 + 4 + 1 + 631 = 666.

It is not a de Polignac number, because 54708641631 - 210 = 54708640607 is a prime.

It is a super-2 number, since 2×547086416312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54708641651) 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, 9098416 + ... + 9104426.

It is an arithmetic number, because the mean of its divisors is an integer number (1908569520).

Almost surely, 254708641631 is an apocalyptic number.

54708641631 is a deficient number, since it is larger than the sum of its proper divisors (36902695329).

54708641631 is a wasteful number, since it uses less digits than its factorization.

54708641631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8076 (or 8073 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 54708641631 in words is "fifty-four billion, seven hundred eight million, six hundred forty-one thousand, six hundred thirty-one".

Divisors: 1 3 7 9 21 63 73 219 511 657 1533 1979 4599 5937 6011 13853 17811 18033 41559 42077 54099 124677 126231 144467 378693 433401 438803 1011269 1300203 1316409 3033807 3071621 3949227 9101421 9214863 11895769 27644589 35687307 83270383 107061921 249811149 749433447 868391137 2605173411 6078737959 7815520233 18236213877 54708641631