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12872671250 = 25410298137
BaseRepresentation
bin10111111110100010…
…10110000000010010
31020020010012110020212
423333101112000102
5202330400440000
65525202004122
7633665620535
oct137721260022
936203173225
1012872671250
11550631848a
1225b3046642
1312a1bb004a
148a18a2a1c
1550519ec35
hex2ff456012

12872671250 has 20 divisors (see below), whose sum is σ = 24128537334. Its totient is φ = 5149068000.

The previous prime is 12872671243. The next prime is 12872671319. The reversal of 12872671250 is 5217627821.

It can be written as a sum of positive squares in 5 ways, for example, as 103897249 + 12768774001 = 10193^2 + 112999^2 .

It is a super-2 number, since 2×128726712502 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12872671198 and 12872671207.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5147819 + ... + 5150318.

Almost surely, 212872671250 is an apocalyptic number.

12872671250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12872671250 is a deficient number, since it is larger than the sum of its proper divisors (11255866084).

12872671250 is an equidigital number, since it uses as much as digits as its factorization.

12872671250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10298159 (or 10298144 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 12872671250 in words is "twelve billion, eight hundred seventy-two million, six hundred seventy-one thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 625 1250 10298137 20596274 51490685 102981370 257453425 514906850 1287267125 2574534250 6436335625 12872671250