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234918 = 23231421
BaseRepresentation
bin111001010110100110
3102221020200
4321112212
530004133
65011330
71665615
oct712646
9387220
10234918
11150552
12b3b46
1382c08
146187c
1549913
hex395a6

234918 has 24 divisors (see below), whose sum is σ = 526656. Its totient is φ = 75600.

The previous prime is 234917. The next prime is 234931. The reversal of 234918 is 819432.

It is a junction number, because it is equal to n+sod(n) for n = 234891 and 234900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234917) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348 + ... + 768.

It is an arithmetic number, because the mean of its divisors is an integer number (21944).

234918 is a Friedman number, since it can be written as 842*31*9, using all its digits and the basic arithmetic operations.

2234918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263328).

234918 is an abundant number, since it is smaller than the sum of its proper divisors (291738).

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

234918 is a wasteful number, since it uses less digits than its factorization.

234918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460 (or 457 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 234918 is about 484.6834018202. The cubic root of 234918 is about 61.7028794690.

The spelling of 234918 in words is "two hundred thirty-four thousand, nine hundred eighteen".

Divisors: 1 2 3 6 9 18 31 62 93 186 279 421 558 842 1263 2526 3789 7578 13051 26102 39153 78306 117459 234918