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55312444045 = 543337616793
BaseRepresentation
bin110011100000111000…
…001110101010001101
312021202211010021211201
4303200320032222031
51401234441202140
641224333345501
73665460005545
oct634070165215
9167684107751
1055312444045
1121504483981
12a878038291
1352a6565541
14296a0c4325
15168ae6749a
hexce0e0ea8d

55312444045 has 16 divisors (see below), whose sum is σ = 66555708912. Its totient is φ = 44129525760.

The previous prime is 55312444027. The next prime is 55312444051. The reversal of 55312444045 is 54044421355.

It can be written as a sum of positive squares in 8 ways, for example, as 15064862121 + 40247581924 = 122739^2 + 200618^2 .

It is not a de Polignac number, because 55312444045 - 211 = 55312441997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55312443995 and 55312444013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8139169 + ... + 8145961.

It is an arithmetic number, because the mean of its divisors is an integer number (4159731807).

Almost surely, 255312444045 is an apocalyptic number.

It is an amenable number.

55312444045 is a deficient number, since it is larger than the sum of its proper divisors (11243264867).

55312444045 is a wasteful number, since it uses less digits than its factorization.

55312444045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10992.

The product of its (nonzero) digits is 192000, while the sum is 37.

The spelling of 55312444045 in words is "fifty-five billion, three hundred twelve million, four hundred forty-four thousand, forty-five".

Divisors: 1 5 433 2165 3761 6793 18805 33965 1628513 2941369 8142565 14706845 25548473 127742365 11062488809 55312444045