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54123974564 = 22111549794119
BaseRepresentation
bin110010011010000010…
…100100111110100100
312011200222210210012112
4302122002210332210
51341321214141224
640510400340152
73624146123132
oct623202447644
9164628723175
1054123974564
1120a546331a0
12a5a6014658
13514727a46a
142896316752
15161b95830e
hexc9a0a4fa4

54123974564 has 24 divisors (see below), whose sum is σ = 103394424000. Its totient is φ = 24585893280.

The previous prime is 54123974561. The next prime is 54123974573. The reversal of 54123974564 is 46547932145.

It is not an unprimeable number, because it can be changed into a prime (54123974561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328904 + ... + 465215.

It is an arithmetic number, because the mean of its divisors is an integer number (4308101000).

Almost surely, 254123974564 is an apocalyptic number.

It is an amenable number.

54123974564 is a deficient number, since it is larger than the sum of its proper divisors (49270449436).

54123974564 is a wasteful number, since it uses less digits than its factorization.

54123974564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795683 (or 795681 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 50.

The spelling of 54123974564 in words is "fifty-four billion, one hundred twenty-three million, nine hundred seventy-four thousand, five hundred sixty-four".

Divisors: 1 2 4 11 22 44 1549 3098 6196 17039 34078 68156 794119 1588238 3176476 8735309 17470618 34941236 1230090331 2460180662 4920361324 13530993641 27061987282 54123974564