Base | Representation |
---|---|
bin | 11100011001100… |
… | …00101000111100 |
3 | 121121021010121110 |
4 | 32030300220330 |
5 | 441441212410 |
6 | 35350002020 |
7 | 5621613246 |
oct | 1614605074 |
9 | 547233543 |
10 | 238225980 |
11 | 112521783 |
12 | 67946310 |
13 | 3a47c525 |
14 | 238d3096 |
15 | 15daa720 |
hex | e330a3c |
238225980 has 48 divisors (see below), whose sum is σ = 685067040. Its totient is φ = 61809408.
The previous prime is 238225961. The next prime is 238225987. The reversal of 238225980 is 89522832.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (238225987) 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 15 ways as a sum of consecutive naturals, for example, 51435 + ... + 55874.
It is an arithmetic number, because the mean of its divisors is an integer number (14272230).
Almost surely, 2238225980 is an apocalyptic number.
238225980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
238225980 is an abundant number, since it is smaller than the sum of its proper divisors (446841060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
238225980 is a wasteful number, since it uses less digits than its factorization.
238225980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 107358 (or 107356 counting only the distinct ones).
The product of its (nonzero) digits is 69120, while the sum is 39.
The square root of 238225980 is about 15434.5709366992. The cubic root of 238225980 is about 619.9115204990.
The spelling of 238225980 in words is "two hundred thirty-eight million, two hundred twenty-five thousand, nine hundred eighty".
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