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13691453 = 97191739
BaseRepresentation
bin110100001110…
…101000111101
3221202121010212
4310032220331
512001111303
61205242205
7224242526
oct64165075
927677125
1013691453
117801656
124703365
132ab4b69
141b6584d
151306ad8
hexd0ea3d

13691453 has 8 divisors (see below), whose sum is σ = 13923840. Its totient is φ = 13461120.

The previous prime is 13691449. The next prime is 13691467. The reversal of 13691453 is 35419631.

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

It is a cyclic number.

It is not a de Polignac number, because 13691453 - 22 = 13691449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13691413) 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 7 ways as a sum of consecutive naturals, for example, 18158 + ... + 18896.

It is an arithmetic number, because the mean of its divisors is an integer number (1740480).

Almost surely, 213691453 is an apocalyptic number.

It is an amenable number.

13691453 is a deficient number, since it is larger than the sum of its proper divisors (232387).

13691453 is an equidigital number, since it uses as much as digits as its factorization.

13691453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027.

The product of its digits is 9720, while the sum is 32.

The square root of 13691453 is about 3700.1963461416. The cubic root of 13691453 is about 239.2304809071.

The spelling of 13691453 in words is "thirteen million, six hundred ninety-one thousand, four hundred fifty-three".

Divisors: 1 97 191 739 18527 71683 141149 13691453