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54851231292 = 2231113127725031
BaseRepresentation
bin110011000101011000…
…110101111000111100
312020120200021020212220
4303011120311320330
51344313403400132
641110500125340
73651156526134
oct630530657074
9166520236786
1054851231292
11212980a9a10
12a769696850
135231b40ca0
142924b47ac4
151660711a2c
hexcc5635e3c

54851231292 has 96 divisors (see below), whose sum is σ = 150485174784. Its totient is φ = 15330374400.

The previous prime is 54851231273. The next prime is 54851231299. The reversal of 54851231292 is 29213215845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54851231299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2178817 + ... + 2203847.

It is an arithmetic number, because the mean of its divisors is an integer number (1567553904).

Almost surely, 254851231292 is an apocalyptic number.

54851231292 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54851231292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75242587392).

54851231292 is an abundant number, since it is smaller than the sum of its proper divisors (95633943492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54851231292 is a wasteful number, since it uses less digits than its factorization.

54851231292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26339 (or 26337 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The spelling of 54851231292 in words is "fifty-four billion, eight hundred fifty-one million, two hundred thirty-one thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 132 143 156 286 429 572 858 1277 1716 2554 3831 5108 7662 14047 15324 16601 25031 28094 33202 42141 49803 50062 56188 66404 75093 84282 99606 100124 150186 168564 182611 199212 275341 300372 325403 365222 547833 550682 650806 730444 826023 976209 1095666 1101364 1301612 1652046 1952418 2191332 3304092 3579433 3904836 7158866 10738299 14317732 21476598 31964587 42953196 63929174 95893761 127858348 191787522 351610457 383575044 415539631 703220914 831079262 1054831371 1246618893 1406441828 1662158524 2109662742 2493237786 4219325484 4570935941 4986475572 9141871882 13712807823 18283743764 27425615646 54851231292