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239232140 = 225713712473
BaseRepresentation
bin11100100001001…
…10010010001100
3121200011020210122
432100212102030
5442220412030
635423324112
75633303540
oct1620462214
9550136718
10239232140
11113049714
1268150638
133a7424a4
1423ab5a20
15160088e5
hexe42648c

239232140 has 48 divisors (see below), whose sum is σ = 578394432. Its totient is φ = 81417216.

The previous prime is 239232127. The next prime is 239232163. The reversal of 239232140 is 41232932.

239232140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12944 + ... + 25416.

It is an arithmetic number, because the mean of its divisors is an integer number (12049884).

Almost surely, 2239232140 is an apocalyptic number.

239232140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239232140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289197216).

239232140 is an abundant number, since it is smaller than the sum of its proper divisors (339162292).

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

239232140 is a wasteful number, since it uses less digits than its factorization.

239232140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12626 (or 12624 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 239232140 is about 15467.1309556750. The cubic root of 239232140 is about 620.7830376904.

The spelling of 239232140 in words is "two hundred thirty-nine million, two hundred thirty-two thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 137 140 274 548 685 959 1370 1918 2740 3836 4795 9590 12473 19180 24946 49892 62365 87311 124730 174622 249460 349244 436555 873110 1708801 1746220 3417602 6835204 8544005 11961607 17088010 23923214 34176020 47846428 59808035 119616070 239232140