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12676384631 = 34936322019
BaseRepresentation
bin10111100111001001…
…00100011101110111
31012201102212001122002
423303210210131313
5201430123302011
65453510525515
7626063330411
oct136344443567
935642761562
1012676384631
115415541439
12255936689b
131270326011
148837a99b1
154e2d2ac3b
hex2f3924777

12676384631 has 4 divisors (see below), whose sum is σ = 12712707000. Its totient is φ = 12640062264.

The previous prime is 12676384621. The next prime is 12676384639. The reversal of 12676384631 is 13648367621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12676384631 - 214 = 12676368247 is a prime.

It is a super-2 number, since 2×126763846312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12676384639) 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, 18160661 + ... + 18161358.

It is an arithmetic number, because the mean of its divisors is an integer number (3178176750).

Almost surely, 212676384631 is an apocalyptic number.

12676384631 is a deficient number, since it is larger than the sum of its proper divisors (36322369).

12676384631 is an equidigital number, since it uses as much as digits as its factorization.

12676384631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36322368.

The product of its digits is 870912, while the sum is 47.

The spelling of 12676384631 in words is "twelve billion, six hundred seventy-six million, three hundred eighty-four thousand, six hundred thirty-one".

Divisors: 1 349 36322019 12676384631