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12648556882 = 213486482957
BaseRepresentation
bin10111100011110100…
…11010100101010010
31012122111111021010201
423301322122211102
5201401012310012
65451034245414
7625304650063
oct136172324522
935574437121
1012648556882
115400864aa5
12254bb8686a
1312676319b0
1487dc0456a
154e0680857
hex2f1e9a952

12648556882 has 8 divisors (see below), whose sum is σ = 20432284236. Its totient is φ = 5837795472.

The previous prime is 12648556873. The next prime is 12648556889. The reversal of 12648556882 is 28865584621.

It can be written as a sum of positive squares in 2 ways, for example, as 12131039881 + 517517001 = 110141^2 + 22749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12648556889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243241453 + ... + 243241504.

Almost surely, 212648556882 is an apocalyptic number.

12648556882 is a deficient number, since it is larger than the sum of its proper divisors (7783727354).

12648556882 is a wasteful number, since it uses less digits than its factorization.

12648556882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486482972.

The product of its digits is 7372800, while the sum is 55.

The spelling of 12648556882 in words is "twelve billion, six hundred forty-eight million, five hundred fifty-six thousand, eight hundred eighty-two".

Divisors: 1 2 13 26 486482957 972965914 6324278441 12648556882