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13862231 is a prime number
BaseRepresentation
bin110100111000…
…010101010111
3222002021101222
4310320111113
512022042411
61213040555
7225553445
oct64702527
928067358
1013862231
117908999
12478615b
132b44806
141babb95
15133c4db
hexd38557

13862231 has 2 divisors, whose sum is σ = 13862232. Its totient is φ = 13862230.

The previous prime is 13862213. The next prime is 13862243. The reversal of 13862231 is 13226831.

Together with previous prime (13862213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13862231 - 222 = 9667927 is a prime.

It is a super-2 number, since 2×138622312 = 384322896594722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13862231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13862201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6931115 + 6931116.

It is an arithmetic number, because the mean of its divisors is an integer number (6931116).

Almost surely, 213862231 is an apocalyptic number.

13862231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13862231 is an equidigital number, since it uses as much as digits as its factorization.

13862231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 13862231 is about 3723.2017135793. The cubic root of 13862231 is about 240.2210405716.

The spelling of 13862231 in words is "thirteen million, eight hundred sixty-two thousand, two hundred thirty-one".