Search a number
-
+
239085920 = 2552364969
BaseRepresentation
bin11100100000000…
…10100101100000
3121122212211020002
432100002211200
5442201222140
635420235132
75632124333
oct1620024540
9548784202
10239085920
11112a59877
126809baa8
133a6c0a78
1423a7861a
1515eca415
hexe402960

239085920 has 48 divisors (see below), whose sum is σ = 589407840. Its totient is φ = 91474944.

The previous prime is 239085907. The next prime is 239085923. The reversal of 239085920 is 29580932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239085923) 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, 28805 + ... + 36164.

It is an arithmetic number, because the mean of its divisors is an integer number (12279330).

Almost surely, 2239085920 is an apocalyptic number.

239085920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239085920 is an abundant number, since it is smaller than the sum of its proper divisors (350321920).

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

239085920 is a wasteful number, since it uses less digits than its factorization.

239085920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65007 (or 64999 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 239085920 is about 15462.4034354301. The cubic root of 239085920 is about 620.6565365783.

The spelling of 239085920 in words is "two hundred thirty-nine million, eighty-five thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 80 92 115 160 184 230 368 460 736 920 1840 3680 64969 129938 259876 324845 519752 649690 1039504 1299380 1494287 2079008 2598760 2988574 5197520 5977148 7471435 10395040 11954296 14942870 23908592 29885740 47817184 59771480 119542960 239085920