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83175012909 = 3267713650913
BaseRepresentation
bin100110101110110011…
…1011111101000101101
321221200121110102220200
41031131213133220231
52330320300403114
6102113213104113
76003103642002
oct1153547375055
9257617412820
1083175012909
113230214329a
1214153188039
137ac6b65291
1440506db8a9
15226c0d3409
hex135d9dfa2d

83175012909 has 12 divisors (see below), whose sum is σ = 120319155996. Its totient is φ = 55368099072.

The previous prime is 83175012857. The next prime is 83175012929. The reversal of 83175012909 is 90921057138.

It can be written as a sum of positive squares in 2 ways, for example, as 72229250025 + 10945762884 = 268755^2 + 104622^2 .

It is not a de Polignac number, because 83175012909 - 217 = 83174881837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83175012929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6819364 + ... + 6831549.

It is an arithmetic number, because the mean of its divisors is an integer number (10026596333).

Almost surely, 283175012909 is an apocalyptic number.

It is an amenable number.

83175012909 is a deficient number, since it is larger than the sum of its proper divisors (37144143087).

83175012909 is a wasteful number, since it uses less digits than its factorization.

83175012909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13651596 (or 13651593 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 83175012909 in words is "eighty-three billion, one hundred seventy-five million, twelve thousand, nine hundred nine".

Divisors: 1 3 9 677 2031 6093 13650913 40952739 122858217 9241668101 27725004303 83175012909