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13768982 = 26884491
BaseRepresentation
bin110100100001…
…100100010110
3221220112111022
4310201210112
512011101412
61211041142
7225014543
oct64414426
927815438
1013768982
117854927
1247401b2
132b11236
141b85bca
15131ea72
hexd21916

13768982 has 4 divisors (see below), whose sum is σ = 20653476. Its totient is φ = 6884490.

The previous prime is 13768961. The next prime is 13769011. The reversal of 13768982 is 28986731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28986731 = 43966029.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3442244 + ... + 3442247.

It is an arithmetic number, because the mean of its divisors is an integer number (5163369).

Almost surely, 213768982 is an apocalyptic number.

13768982 is a deficient number, since it is larger than the sum of its proper divisors (6884494).

13768982 is an equidigital number, since it uses as much as digits as its factorization.

13768982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6884493.

The product of its digits is 145152, while the sum is 44.

The square root of 13768982 is about 3710.6578931505. The cubic root of 13768982 is about 239.6811854726.

The spelling of 13768982 in words is "thirteen million, seven hundred sixty-eight thousand, nine hundred eighty-two".

Divisors: 1 2 6884491 13768982