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238225900 = 225211216569
BaseRepresentation
bin11100011001100…
…00100111101100
3121121021010111111
432030300213230
5441441212100
635350001404
75621613103
oct1614604754
9547233444
10238225900
11112521710
1267946264
133a47c493
14238d303a
1515daa6ba
hexe3309ec

238225900 has 36 divisors (see below), whose sum is σ = 563948280. Its totient is φ = 86627200.

The previous prime is 238225877. The next prime is 238225901. The reversal of 238225900 is 9522832.

238225900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (238225901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107185 + ... + 109384.

It is an arithmetic number, because the mean of its divisors is an integer number (15665230).

Almost surely, 2238225900 is an apocalyptic number.

238225900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238225900 is an abundant number, since it is smaller than the sum of its proper divisors (325722380).

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

238225900 is a wasteful number, since it uses less digits than its factorization.

238225900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216594 (or 216587 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 238225900 is about 15434.5683451142. The cubic root of 238225900 is about 619.9114511070.

It can be divided in two parts, 2382 and 25900, that added together give a palindrome (28282).

The spelling of 238225900 in words is "two hundred thirty-eight million, two hundred twenty-five thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 216569 433138 866276 1082845 2165690 2382259 4331380 4764518 5414225 9529036 10828450 11911295 21656900 23822590 47645180 59556475 119112950 238225900