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238040 = 23511541
BaseRepresentation
bin111010000111011000
3110002112022
4322013120
530104130
65034012
72010665
oct720730
9402468
10238040
11152930
12b5908
138446a
1462a6c
154a7e5
hex3a1d8

238040 has 32 divisors (see below), whose sum is σ = 585360. Its totient is φ = 86400.

The previous prime is 238039. The next prime is 238079. The reversal of 238040 is 40832.

238040 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170 + ... + 710.

2238040 is an apocalyptic number.

238040 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 238040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292680).

238040 is an abundant number, since it is smaller than the sum of its proper divisors (347320).

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

238040 is a wasteful number, since it uses less digits than its factorization.

238040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 238040 is about 487.8934309867. The cubic root of 238040 is about 61.9750159481.

Adding to 238040 its reverse (40832), we get a palindrome (278872).

The spelling of 238040 in words is "two hundred thirty-eight thousand, forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 541 1082 2164 2705 4328 5410 5951 10820 11902 21640 23804 29755 47608 59510 119020 238040