Search a number
-
+
238638750 = 235479091
BaseRepresentation
bin11100011100101…
…01011010011110
3121122001002211020
432032111122132
5442042420000
635402505010
75625252540
oct1616253236
9548032736
10238638750
11112783909
1267b05166
133a59537c
142399d690
1515e3cba0
hexe39569e

238638750 has 80 divisors (see below), whose sum is σ = 681681792. Its totient is φ = 54540000.

The previous prime is 238638671. The next prime is 238638761. The reversal of 238638750 is 57836832.

238638750 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21705 + ... + 30795.

Almost surely, 2238638750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238638750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340840896).

238638750 is an abundant number, since it is smaller than the sum of its proper divisors (443043042).

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

238638750 is an equidigital number, since it uses as much as digits as its factorization.

238638750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9123 (or 9108 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 238638750 is about 15447.9367554376. The cubic root of 238638750 is about 620.2693505359.

The spelling of 238638750 in words is "two hundred thirty-eight million, six hundred thirty-eight thousand, seven hundred fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 25 30 35 42 50 70 75 105 125 150 175 210 250 350 375 525 625 750 875 1050 1250 1750 1875 2625 3750 4375 5250 8750 9091 13125 18182 26250 27273 45455 54546 63637 90910 127274 136365 190911 227275 272730 318185 381822 454550 636370 681825 954555 1136375 1363650 1590925 1909110 2272750 3181850 3409125 4772775 5681875 6818250 7954625 9545550 11363750 15909250 17045625 23863875 34091250 39773125 47727750 79546250 119319375 238638750