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231214344 = 23319507049
BaseRepresentation
bin11011100100000…
…00110100001000
3121010001220110020
431302000310020
5433142324334
634535420440
75505201204
oct1562006410
9533056406
10231214344
11109572839
1265524720
1338b95c2a
14229c9b04
1515472e49
hexdc80d08

231214344 has 32 divisors (see below), whose sum is σ = 608460000. Its totient is φ = 73014912.

The previous prime is 231214343. The next prime is 231214367. The reversal of 231214344 is 443412132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (231214343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253069 + ... + 253980.

It is an arithmetic number, because the mean of its divisors is an integer number (19014375).

Almost surely, 2231214344 is an apocalyptic number.

231214344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

231214344 is an abundant number, since it is smaller than the sum of its proper divisors (377245656).

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

231214344 is a wasteful number, since it uses less digits than its factorization.

231214344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507077 (or 507073 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 231214344 is about 15205.7339184927. The cubic root of 231214344 is about 613.7689645613.

Adding to 231214344 its reverse (443412132), we get a palindrome (674626476).

The spelling of 231214344 in words is "two hundred thirty-one million, two hundred fourteen thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 507049 1014098 1521147 2028196 3042294 4056392 6084588 9633931 12169176 19267862 28901793 38535724 57803586 77071448 115607172 231214344