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55312140125 = 5311215723293
BaseRepresentation
bin110011100000110111…
…000100011101011101
312021202210112211221102
4303200313010131131
51401234401441000
641224323042445
73665454301514
oct634067043535
9167683484842
1055312140125
1121504296600
12a877b10425
1352a648a0c8
14296a04567b
15168ae073d5
hexce0dc475d

55312140125 has 48 divisors (see below), whose sum is σ = 76362018096. Its totient is φ = 39969072000.

The previous prime is 55312140053. The next prime is 55312140161. The reversal of 55312140125 is 52104121355.

It can be written as a sum of positive squares in 8 ways, for example, as 40000800004 + 15311340121 = 200002^2 + 123739^2 .

It is not a de Polignac number, because 55312140125 - 234 = 38132270941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2362979 + ... + 2386271.

It is an arithmetic number, because the mean of its divisors is an integer number (1590875377).

Almost surely, 255312140125 is an apocalyptic number.

55312140125 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55312140125 is a deficient number, since it is larger than the sum of its proper divisors (21049877971).

55312140125 is a wasteful number, since it uses less digits than its factorization.

55312140125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23487 (or 23466 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 55312140125 in words is "fifty-five billion, three hundred twelve million, one hundred forty thousand, one hundred twenty-five".

Divisors: 1 5 11 25 55 121 125 157 275 605 785 1375 1727 3025 3925 8635 15125 18997 19625 23293 43175 94985 116465 215875 256223 474925 582325 1281115 2374625 2818453 2911625 3657001 6405575 14092265 18285005 32027875 40227011 70461325 91425025 201135055 352306625 442497121 457125125 1005675275 2212485605 5028376375 11062428025 55312140125