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238912960 = 265111323227
BaseRepresentation
bin11100011110110…
…00010111000000
3121122120000222011
432033120113000
5442130203320
635412422304
75630504146
oct1617302700
9548500864
10238912960
11112950930
1268017994
133a660120
1423a31596
1515e9405a
hexe3d85c0

238912960 has 224 divisors, whose sum is σ = 700503552. Its totient is φ = 76369920.

The previous prime is 238912931. The next prime is 238912969. The reversal of 238912960 is 69219832.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238912969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1052367 + ... + 1052593.

It is an arithmetic number, because the mean of its divisors is an integer number (3127248).

Almost surely, 2238912960 is an apocalyptic number.

238912960 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 238912960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350251776).

238912960 is an abundant number, since it is smaller than the sum of its proper divisors (461590592).

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

238912960 is a wasteful number, since it uses less digits than its factorization.

238912960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 238912960 is about 15456.8095026108. The cubic root of 238912960 is about 620.5068349548.

The spelling of 238912960 in words is "two hundred thirty-eight million, nine hundred twelve thousand, nine hundred sixty".