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231340014 = 23289144407
BaseRepresentation
bin11011100100111…
…11011111101110
3121010022021211200
431302133133232
5433210340024
634542230330
75506233453
oct1562373756
9533267750
10231340014
111096491a4
12655853a6
1338c0b1a9
1422a1d82a
151549a2c9
hexdc9f7ee

231340014 has 24 divisors (see below), whose sum is σ = 506872080. Its totient is φ = 76246368.

The previous prime is 231340009. The next prime is 231340027. The reversal of 231340014 is 410043132.

231340014 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70602 + ... + 73805.

It is an arithmetic number, because the mean of its divisors is an integer number (21119670).

Almost surely, 2231340014 is an apocalyptic number.

231340014 is an abundant number, since it is smaller than the sum of its proper divisors (275532066).

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

231340014 is a wasteful number, since it uses less digits than its factorization.

231340014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144504 (or 144501 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 231340014 is about 15209.8656798803. The cubic root of 231340014 is about 613.8801433262.

Adding to 231340014 its reverse (410043132), we get a palindrome (641383146).

The spelling of 231340014 in words is "two hundred thirty-one million, three hundred forty thousand, fourteen".

Divisors: 1 2 3 6 9 18 89 178 267 534 801 1602 144407 288814 433221 866442 1299663 2599326 12852223 25704446 38556669 77113338 115670007 231340014