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231255241 = 733036463
BaseRepresentation
bin11011100100010…
…10110011001001
3121010010222112221
431302022303021
5433200131431
634540334041
75505431350
oct1562126311
9533128487
10231255241
111095a0538
1265544321
1338bab729
14229da997
1515480111
hexdc8acc9

231255241 has 4 divisors (see below), whose sum is σ = 264291712. Its totient is φ = 198218772.

The previous prime is 231255229. The next prime is 231255259. The reversal of 231255241 is 142552132.

231255241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231255241 - 27 = 231255113 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (231255221) 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, 16518225 + ... + 16518238.

It is an arithmetic number, because the mean of its divisors is an integer number (66072928).

Almost surely, 2231255241 is an apocalyptic number.

It is an amenable number.

231255241 is a deficient number, since it is larger than the sum of its proper divisors (33036471).

231255241 is an equidigital number, since it uses as much as digits as its factorization.

231255241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33036470.

The product of its digits is 2400, while the sum is 25.

The square root of 231255241 is about 15207.0786477877. The cubic root of 231255241 is about 613.8051500751.

The spelling of 231255241 in words is "two hundred thirty-one million, two hundred fifty-five thousand, two hundred forty-one".

Divisors: 1 7 33036463 231255241