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13697379 = 321639337
BaseRepresentation
bin110100010000…
…000101100011
3221202220021100
4310100011203
512001304004
61205325443
7224266023
oct64200543
927686240
1013697379
117806053
124706883
132ab7777
141b67a83
151308739
hexd10163

13697379 has 12 divisors (see below), whose sum is σ = 19908616. Its totient is φ = 9074592.

The previous prime is 13697377. The next prime is 13697389. The reversal of 13697379 is 97379631.

It is not a de Polignac number, because 13697379 - 21 = 13697377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13697377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3202 + ... + 6135.

Almost surely, 213697379 is an apocalyptic number.

13697379 is a deficient number, since it is larger than the sum of its proper divisors (6211237).

13697379 is a wasteful number, since it uses less digits than its factorization.

13697379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9506 (or 9503 counting only the distinct ones).

The product of its digits is 214326, while the sum is 45.

The square root of 13697379 is about 3700.9970278291. The cubic root of 13697379 is about 239.2649908879.

The spelling of 13697379 in words is "thirteen million, six hundred ninety-seven thousand, three hundred seventy-nine".

Divisors: 1 3 9 163 489 1467 9337 28011 84033 1521931 4565793 13697379