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54685142911 = 7591069123863
BaseRepresentation
bin110010111011011111…
…010000111101111111
312020011002202002110101
4302323133100331333
51343443344033121
641042204221531
73644102021350
oct627337207577
9166132662411
1054685142911
1121212379293
12a721b3a8a7
1352065cb239
14290aa71d27
151650d55491
hexcbb7d0f7f

54685142911 has 16 divisors (see below), whose sum is σ = 63616550400. Its totient is φ = 46035046368.

The previous prime is 54685142903. The next prime is 54685142917. The reversal of 54685142911 is 11924158645.

It is a cyclic number.

It is not a de Polignac number, because 54685142911 - 23 = 54685142903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54685142917) 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, 379566 + ... + 503428.

It is an arithmetic number, because the mean of its divisors is an integer number (3976034400).

Almost surely, 254685142911 is an apocalyptic number.

54685142911 is a deficient number, since it is larger than the sum of its proper divisors (8931407489).

54685142911 is a wasteful number, since it uses less digits than its factorization.

54685142911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124998.

The product of its digits is 345600, while the sum is 46.

The spelling of 54685142911 in words is "fifty-four billion, six hundred eighty-five million, one hundred forty-two thousand, nine hundred eleven".

Divisors: 1 7 59 413 1069 7483 63071 123863 441497 867041 7307917 51155419 132409547 926866829 7812163273 54685142911