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231241349 is a prime number
BaseRepresentation
bin11011100100001…
…11011010000101
3121010010021111102
431302013122011
5433144210344
634540145445
75505343013
oct1562073205
9533107442
10231241349
11109591059
1265538285
1338ba5301
14229d58b3
151547ae4e
hexdc87685

231241349 has 2 divisors, whose sum is σ = 231241350. Its totient is φ = 231241348.

The previous prime is 231241337. The next prime is 231241357. The reversal of 231241349 is 943142132.

231241349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230493124 + 748225 = 15182^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 231241349 - 28 = 231241093 is a prime.

It is a super-2 number, since 2×2312413492 = 106945122974679602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231241399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115620674 + 115620675.

It is an arithmetic number, because the mean of its divisors is an integer number (115620675).

Almost surely, 2231241349 is an apocalyptic number.

It is an amenable number.

231241349 is a deficient number, since it is larger than the sum of its proper divisors (1).

231241349 is an equidigital number, since it uses as much as digits as its factorization.

231241349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 231241349 is about 15206.6218799574. The cubic root of 231241349 is about 613.7928589635.

The spelling of 231241349 in words is "two hundred thirty-one million, two hundred forty-one thousand, three hundred forty-nine".