Search a number
-
+
13798613 = 107128959
BaseRepresentation
bin110100101000…
…110011010101
3221222001010202
4310220303111
512013023423
61211430245
7225200123
oct64506325
927861122
1013798613
117875114
124755385
132b2187a
141b92913
151328728
hexd28cd5

13798613 has 4 divisors (see below), whose sum is σ = 13927680. Its totient is φ = 13669548.

The previous prime is 13798607. The next prime is 13798621. The reversal of 13798613 is 31689731.

13798613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31689731 = 39779823.

It is a cyclic number.

It is not a de Polignac number, because 13798613 - 26 = 13798549 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 (13798663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64373 + ... + 64586.

It is an arithmetic number, because the mean of its divisors is an integer number (3481920).

Almost surely, 213798613 is an apocalyptic number.

It is an amenable number.

13798613 is a deficient number, since it is larger than the sum of its proper divisors (129067).

13798613 is a wasteful number, since it uses less digits than its factorization.

13798613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129066.

The product of its digits is 27216, while the sum is 38.

The square root of 13798613 is about 3714.6484355858. The cubic root of 13798613 is about 239.8529944648.

The spelling of 13798613 in words is "thirteen million, seven hundred ninety-eight thousand, six hundred thirteen".

Divisors: 1 107 128959 13798613