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231245463 = 377081821
BaseRepresentation
bin11011100100010…
…00011010010111
3121010010111010210
431302020122113
5433144323323
634540220503
75505361011
oct1562103227
9533114123
10231245463
11109594159
126553a733
1338ba7147
14229d71b1
151547c293
hexdc88697

231245463 has 4 divisors (see below), whose sum is σ = 308327288. Its totient is φ = 154163640.

The previous prime is 231245429. The next prime is 231245489. The reversal of 231245463 is 364542132.

231245463 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.

It is not a de Polignac number, because 231245463 - 214 = 231229079 is a prime.

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 231245463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231249463) 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, 38540908 + ... + 38540913.

It is an arithmetic number, because the mean of its divisors is an integer number (77081822).

Almost surely, 2231245463 is an apocalyptic number.

231245463 is a deficient number, since it is larger than the sum of its proper divisors (77081825).

231245463 is an equidigital number, since it uses as much as digits as its factorization.

231245463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77081824.

The product of its digits is 17280, while the sum is 30.

The square root of 231245463 is about 15206.7571493728. The cubic root of 231245463 is about 613.7964989251.

Adding to 231245463 its reverse (364542132), we get a palindrome (595787595).

The spelling of 231245463 in words is "two hundred thirty-one million, two hundred forty-five thousand, four hundred sixty-three".

Divisors: 1 3 77081821 231245463