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54012511105 = 572220459229
BaseRepresentation
bin110010010011011001…
…011000001110000001
312011102020001212002021
4302103121120032001
51341104200323410
640451335321441
73621323524600
oct622331301601
9164366055067
1054012511105
11209a7722033
12a574820281
13512a151c57
1428855bda37
151611c8beda
hexc93658381

54012511105 has 12 divisors (see below), whose sum is σ = 75397056660. Its totient is φ = 37037150304.

The previous prime is 54012511093. The next prime is 54012511109. The reversal of 54012511105 is 50111521045.

It can be written as a sum of positive squares in 2 ways, for example, as 15219663424 + 38792847681 = 123368^2 + 196959^2 .

It is not a de Polignac number, because 54012511105 - 213 = 54012502913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54012511105.

It is not an unprimeable number, because it can be changed into a prime (54012511109) 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, 110229370 + ... + 110229859.

It is an arithmetic number, because the mean of its divisors is an integer number (6283088055).

Almost surely, 254012511105 is an apocalyptic number.

It is an amenable number.

54012511105 is a deficient number, since it is larger than the sum of its proper divisors (21384545555).

54012511105 is a wasteful number, since it uses less digits than its factorization.

54012511105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220459248 (or 220459241 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 54012511105 in words is "fifty-four billion, twelve million, five hundred eleven thousand, one hundred five".

Divisors: 1 5 7 35 49 245 220459229 1102296145 1543214603 7716073015 10802502221 54012511105