Search a number
-
+
13359231 = 321484359
BaseRepresentation
bin110010111101…
…100001111111
3221010201102100
4302331201333
511404443411
61154200143
7221360124
oct62754177
927121370
1013359231
1175a4a96
124583053
1329c9892
141aba74b
15128d456
hexcbd87f

13359231 has 6 divisors (see below), whose sum is σ = 19296680. Its totient is φ = 8906148.

The previous prime is 13359221. The next prime is 13359259. The reversal of 13359231 is 13295331.

It is a happy number.

It is not a de Polignac number, because 13359231 - 215 = 13326463 is a prime.

It is a super-2 number, since 2×133592312 = 356938105822722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13359195 and 13359204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13359211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 742171 + ... + 742188.

Almost surely, 213359231 is an apocalyptic number.

13359231 is a deficient number, since it is larger than the sum of its proper divisors (5937449).

13359231 is a wasteful number, since it uses less digits than its factorization.

13359231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484365 (or 1484362 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 13359231 is about 3655.0281804659. The cubic root of 13359231 is about 237.2796464030.

The spelling of 13359231 in words is "thirteen million, three hundred fifty-nine thousand, two hundred thirty-one".

Divisors: 1 3 9 1484359 4453077 13359231