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55555106012 = 22719104426891
BaseRepresentation
bin110011101111010101…
…111010010011011100
312022101201201210110222
4303233111322103130
51402234101343022
641304402420512
74004464416050
oct635725722334
9168351653428
1055555106012
112161945545a
12a925361738
135314908bc3
14299040dc60
1516a23ec242
hexcef57a4dc

55555106012 has 24 divisors (see below), whose sum is σ = 116958119040. Its totient is φ = 22556208240.

The previous prime is 55555106011. The next prime is 55555106027. The reversal of 55555106012 is 21060155555.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555106011) 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, 52212914 + ... + 52213977.

It is an arithmetic number, because the mean of its divisors is an integer number (4873254960).

Almost surely, 255555106012 is an apocalyptic number.

It is an amenable number.

55555106012 is an abundant number, since it is smaller than the sum of its proper divisors (61403013028).

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

55555106012 is a wasteful number, since it uses less digits than its factorization.

55555106012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104426921 (or 104426919 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 35.

The spelling of 55555106012 in words is "fifty-five billion, five hundred fifty-five million, one hundred six thousand, twelve".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 104426891 208853782 417707564 730988237 1461976474 1984110929 2923952948 3968221858 7936443716 13888776503 27777553006 55555106012