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13310231 = 111210021
BaseRepresentation
bin110010110001…
…100100010111
3221001020012112
4302301210113
511401411411
61153141235
7221064224
oct62614427
927036175
1013310231
1175711a0
12455a81b
1329b049c
141aa694b
15127db8b
hexcb1917

13310231 has 4 divisors (see below), whose sum is σ = 14520264. Its totient is φ = 12100200.

The previous prime is 13310221. The next prime is 13310233. The reversal of 13310231 is 13201331.

13310231 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13310231 is a prime.

It is a super-2 number, since 2×133102312 = 354324498546722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13310233) 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, 605000 + ... + 605021.

It is an arithmetic number, because the mean of its divisors is an integer number (3630066).

Almost surely, 213310231 is an apocalyptic number.

13310231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13310231 is a deficient number, since it is larger than the sum of its proper divisors (1210033).

13310231 is a wasteful number, since it uses less digits than its factorization.

13310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210032.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 13310231 is about 3648.3189279448. The cubic root of 13310231 is about 236.9891868995.

Adding to 13310231 its reverse (13201331), we get a palindrome (26511562).

Subtracting from 13310231 its reverse (13201331), we obtain a square (108900 = 3302).

The spelling of 13310231 in words is "thirteen million, three hundred ten thousand, two hundred thirty-one".

Divisors: 1 11 1210021 13310231