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239916 = 22319993
BaseRepresentation
bin111010100100101100
3110012002210
4322210230
530134131
65050420
72016315
oct724454
9405083
10239916
11154286
12b6a10
1385281
146360c
154b146
hex3a92c

239916 has 12 divisors (see below), whose sum is σ = 559832. Its totient is φ = 79968.

The previous prime is 239893. The next prime is 239929. The reversal of 239916 is 619932.

239916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 239916.

It is an unprimeable number.

239916 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9985 + ... + 10008.

2239916 is an apocalyptic number.

It is an amenable number.

239916 is an abundant number, since it is smaller than the sum of its proper divisors (319916).

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

239916 is a wasteful number, since it uses less digits than its factorization.

239916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20000 (or 19998 counting only the distinct ones).

The product of its digits is 2916, while the sum is 30.

The square root of 239916 is about 489.8122089128. The cubic root of 239916 is about 62.1373990639.

It can be divided in two parts, 2399 and 16, that added together give a triangular number (2415 = T69).

The spelling of 239916 in words is "two hundred thirty-nine thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 19993 39986 59979 79972 119958 239916