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231346460 = 225104911027
BaseRepresentation
bin11011100101000…
…01000100011100
3121010022121200102
431302201010130
5433211041320
634542320232
75506261322
oct1562410434
9533277612
10231346460
11109653024
1265589078
1338c110c7
1422a21d12
151549c175
hexdca111c

231346460 has 24 divisors (see below), whose sum is σ = 486334800. Its totient is φ = 92441984.

The previous prime is 231346439. The next prime is 231346483. The reversal of 231346460 is 64643132.

231346460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15467 + ... + 26493.

It is an arithmetic number, because the mean of its divisors is an integer number (20263950).

Almost surely, 2231346460 is an apocalyptic number.

231346460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231346460 is an abundant number, since it is smaller than the sum of its proper divisors (254988340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231346460 is a wasteful number, since it uses less digits than its factorization.

231346460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12085 (or 12083 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 231346460 is about 15210.0775803413. The cubic root of 231346460 is about 613.8858449406.

Adding to 231346460 its reverse (64643132), we get a palindrome (295989592).

The spelling of 231346460 in words is "two hundred thirty-one million, three hundred forty-six thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 1049 2098 4196 5245 10490 11027 20980 22054 44108 55135 110270 220540 11567323 23134646 46269292 57836615 115673230 231346460