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13712697 = 321523633
BaseRepresentation
bin110100010011…
…110100111001
3221210200021200
4310103310321
512002301242
61205524413
7224361465
oct64236471
927720250
1013712697
117816609
124713709
132ac172b
141b6d4a5
15130d04c
hexd13d39

13712697 has 6 divisors (see below), whose sum is σ = 19807242. Its totient is φ = 9141792.

The previous prime is 13712651. The next prime is 13712711. The reversal of 13712697 is 79621731.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10653696 + 3059001 = 3264^2 + 1749^2 .

It is not a de Polignac number, because 13712697 - 28 = 13712441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13712627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 761808 + ... + 761825.

It is an arithmetic number, because the mean of its divisors is an integer number (3301207).

Almost surely, 213712697 is an apocalyptic number.

It is an amenable number.

13712697 is a deficient number, since it is larger than the sum of its proper divisors (6094545).

13712697 is a wasteful number, since it uses less digits than its factorization.

13712697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523639 (or 1523636 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 13712697 is about 3703.0658919333. The cubic root of 13712697 is about 239.3541489608.

The spelling of 13712697 in words is "thirteen million, seven hundred twelve thousand, six hundred ninety-seven".

Divisors: 1 3 9 1523633 4570899 13712697