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13493679 = 315728649
BaseRepresentation
bin110011011110…
…010110101111
3221101112211220
4303132112233
511423244204
61201114423
7222460113
oct63362657
927345756
1013493679
117687001
124628a13
132a45b34
141b13743
1512b81d9
hexcde5af

13493679 has 8 divisors (see below), whose sum is σ = 18106800. Its totient is φ = 8938176.

The previous prime is 13493659. The next prime is 13493681. The reversal of 13493679 is 97639431.

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

It is not a de Polignac number, because 13493679 - 25 = 13493647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13493679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13493609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13854 + ... + 14795.

It is an arithmetic number, because the mean of its divisors is an integer number (2263350).

Almost surely, 213493679 is an apocalyptic number.

13493679 is a deficient number, since it is larger than the sum of its proper divisors (4613121).

13493679 is a wasteful number, since it uses less digits than its factorization.

13493679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28809.

The product of its digits is 122472, while the sum is 42.

The square root of 13493679 is about 3673.3743343144. The cubic root of 13493679 is about 238.0729891712.

The spelling of 13493679 in words is "thirteen million, four hundred ninety-three thousand, six hundred seventy-nine".

Divisors: 1 3 157 471 28649 85947 4497893 13493679