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13934231 = 47296473
BaseRepresentation
bin110101001001…
…111010010111
3222012221011122
4311021322113
512031343411
61214354155
7226303403
oct65117227
928187148
1013934231
117957aa3
1247bb95b
132b6b50c
141bca103
1513539db
hexd49e97

13934231 has 4 divisors (see below), whose sum is σ = 14230752. Its totient is φ = 13637712.

The previous prime is 13934227. The next prime is 13934243. The reversal of 13934231 is 13243931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13243931 = 19697049.

It is a cyclic number.

It is not a de Polignac number, because 13934231 - 22 = 13934227 is a prime.

It is a super-2 number, since 2×139342312 = 388325587122722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13934231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13934281) 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, 148190 + ... + 148283.

It is an arithmetic number, because the mean of its divisors is an integer number (3557688).

Almost surely, 213934231 is an apocalyptic number.

13934231 is a deficient number, since it is larger than the sum of its proper divisors (296521).

13934231 is an equidigital number, since it uses as much as digits as its factorization.

13934231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296520.

The product of its digits is 1944, while the sum is 26.

The square root of 13934231 is about 3732.8582882290. The cubic root of 13934231 is about 240.6362228082.

The spelling of 13934231 in words is "thirteen million, nine hundred thirty-four thousand, two hundred thirty-one".

Divisors: 1 47 296473 13934231