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231944 = 2379367
BaseRepresentation
bin111000101000001000
3102210011112
4320220020
524410234
64545452
71654136
oct705010
9383145
10231944
11149299
12b2288
138175b
1460756
1548ace
hex38a08

231944 has 16 divisors (see below), whose sum is σ = 441600. Its totient is φ = 114192.

The previous prime is 231943. The next prime is 231947. The reversal of 231944 is 449132.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231944.

It is not an unprimeable number, because it can be changed into a prime (231943) 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, 449 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (27600).

2231944 is an apocalyptic number.

It is an amenable number.

231944 is a deficient number, since it is larger than the sum of its proper divisors (209656).

231944 is a wasteful number, since it uses less digits than its factorization.

231944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 448 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 231944 is about 481.6056478074. The cubic root of 231944 is about 61.4413921578.

The spelling of 231944 in words is "two hundred thirty-one thousand, nine hundred forty-four".

Divisors: 1 2 4 8 79 158 316 367 632 734 1468 2936 28993 57986 115972 231944