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238850864 = 2472398923
BaseRepresentation
bin11100011110010…
…01001100110000
3121122102212210022
432033021030300
5442121211424
635411223012
75630125130
oct1617111460
9548385708
10238850864
1111290920a
1267ba7a68
133a63aa95
1423a16ac0
1515e8095e
hexe3c9330

238850864 has 40 divisors (see below), whose sum is σ = 531156480. Its totient is φ = 101924928.

The previous prime is 238850861. The next prime is 238850879. The reversal of 238850864 is 468058832.

It is not an unprimeable number, because it can be changed into a prime (238850861) 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 7 ways as a sum of consecutive naturals, for example, 22307 + ... + 31229.

It is an arithmetic number, because the mean of its divisors is an integer number (13278912).

Almost surely, 2238850864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238850864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265578240).

238850864 is an abundant number, since it is smaller than the sum of its proper divisors (292305616).

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

238850864 is a wasteful number, since it uses less digits than its factorization.

238850864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9177 (or 9171 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The square root of 238850864 is about 15454.8006781065. The cubic root of 238850864 is about 620.4530715381.

The spelling of 238850864 in words is "two hundred thirty-eight million, eight hundred fifty thousand, eight hundred sixty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 239 478 956 1673 1912 3346 3824 6692 8923 13384 17846 26768 35692 62461 71384 124922 142768 249844 499688 999376 2132597 4265194 8530388 14928179 17060776 29856358 34121552 59712716 119425432 238850864