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12873365857 = 112374368483
BaseRepresentation
bin10111111110100111…
…11111100101100001
31020020011111202002001
423333103333211201
5202331040201412
65525224524001
7634004542612
oct137723774541
936204452061
1012873365857
115506752340
1225b3320601
1312a2094261
148a1a03c09
1550528a957
hex2ff4ff961

12873365857 has 16 divisors (see below), whose sum is σ = 14674203648. Its totient is φ = 11179001680.

The previous prime is 12873365837. The next prime is 12873365861. The reversal of 12873365857 is 75856337821.

It is not a de Polignac number, because 12873365857 - 211 = 12873363809 is a prime.

It is a super-3 number, since 3×128733658573 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12873365798 and 12873365807.

It is not an unprimeable number, because it can be changed into a prime (12873365837) 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 15 ways as a sum of consecutive naturals, for example, 153738 + ... + 222220.

It is an arithmetic number, because the mean of its divisors is an integer number (917137728).

Almost surely, 212873365857 is an apocalyptic number.

It is an amenable number.

12873365857 is a deficient number, since it is larger than the sum of its proper divisors (1800837791).

12873365857 is a wasteful number, since it uses less digits than its factorization.

12873365857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69260.

The product of its digits is 8467200, while the sum is 55.

The spelling of 12873365857 in words is "twelve billion, eight hundred seventy-three million, three hundred sixty-five thousand, eight hundred fifty-seven".

Divisors: 1 11 23 253 743 8173 17089 68483 187979 753313 1575109 17326199 50882869 559711559 1170305987 12873365857