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54121986023 = 723759505969
BaseRepresentation
bin110010011001111010…
…111111011111100111
312011200212001202102212
4302121322333133213
51341320212023043
640510245554035
73624123201500
oct623172773747
9164625052385
1054121986023
1120a534a5176
12a5a541591b
135146a32301
142895d59ba7
15161b6b4018
hexc99ebf7e7

54121986023 has 24 divisors (see below), whose sum is σ = 65755861200. Its totient is φ = 44371369728.

The previous prime is 54121986019. The next prime is 54121986031. The reversal of 54121986023 is 32068912145.

It is not a de Polignac number, because 54121986023 - 22 = 54121986019 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 (54121986013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146018 + ... + 359951.

It is an arithmetic number, because the mean of its divisors is an integer number (2739827550).

Almost surely, 254121986023 is an apocalyptic number.

54121986023 is a deficient number, since it is larger than the sum of its proper divisors (11633875177).

54121986023 is a wasteful number, since it uses less digits than its factorization.

54121986023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506079 (or 506072 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 54121986023 in words is "fifty-four billion, one hundred twenty-one million, nine hundred eighty-six thousand, twenty-three".

Divisors: 1 7 37 49 59 259 413 1813 2183 2891 15281 106967 505969 3541783 18720853 24792481 29852171 131045971 208965197 917321797 1104530327 1462756379 7731712289 54121986023