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55443144105 = 3251232069869
BaseRepresentation
bin110011101000101010…
…110011110110101001
312022002221001112121200
4303220222303312221
51402021421102410
641245322554413
74001634643356
oct635052636651
9168087045550
1055443144105
1121571233858
12a8b3968a09
1352c766785b
14297d5c762d
1516976833c0
hexce8ab3da9

55443144105 has 12 divisors (see below), whose sum is σ = 96101449860. Its totient is φ = 29569676832.

The previous prime is 55443144103. The next prime is 55443144167. The reversal of 55443144105 is 50144134455.

55443144105 is a `hidden beast` number, since 5 + 544 + 3 + 1 + 4 + 4 + 105 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7476887961 + 47966256144 = 86469^2 + 219012^2 .

It is not a de Polignac number, because 55443144105 - 21 = 55443144103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55443144105.

It is not an unprimeable number, because it can be changed into a prime (55443144103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616034890 + ... + 616034979.

It is an arithmetic number, because the mean of its divisors is an integer number (8008454155).

Almost surely, 255443144105 is an apocalyptic number.

It is an amenable number.

55443144105 is a deficient number, since it is larger than the sum of its proper divisors (40658305755).

55443144105 is a wasteful number, since it uses less digits than its factorization.

55443144105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232069880 (or 1232069877 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 55443144105 in words is "fifty-five billion, four hundred forty-three million, one hundred forty-four thousand, one hundred five".

Divisors: 1 3 5 9 15 45 1232069869 3696209607 6160349345 11088628821 18481048035 55443144105