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231241134 = 23192028431
BaseRepresentation
bin11011100100001…
…11010110101110
3121010010021012110
431302013112232
5433144204014
634540144450
75505342255
oct1562072656
9533107173
10231241134
11109590983
1265538126
1338ba5197
14229d579c
151547ad59
hexdc875ae

231241134 has 16 divisors (see below), whose sum is σ = 486823680. Its totient is φ = 73023480.

The previous prime is 231241133. The next prime is 231241139. The reversal of 231241134 is 431142132.

It is a self number, because there is not a number n which added to its sum of digits gives 231241134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231241133) 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, 1014102 + ... + 1014329.

It is an arithmetic number, because the mean of its divisors is an integer number (30426480).

Almost surely, 2231241134 is an apocalyptic number.

231241134 is an abundant number, since it is smaller than the sum of its proper divisors (255582546).

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

231241134 is a wasteful number, since it uses less digits than its factorization.

231241134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028455.

The product of its digits is 576, while the sum is 21.

The square root of 231241134 is about 15206.6148106671. The cubic root of 231241134 is about 613.7926687359.

Adding to 231241134 its reverse (431142132), we get a palindrome (662383266).

The spelling of 231241134 in words is "two hundred thirty-one million, two hundred forty-one thousand, one hundred thirty-four".

Divisors: 1 2 3 6 19 38 57 114 2028431 4056862 6085293 12170586 38540189 77080378 115620567 231241134