Base | Representation |
---|---|
bin | 11110001111011… |
… | …01110011111000 |
3 | 122200100022202110 |
4 | 33013231303320 |
5 | 1004420242023 |
6 | 41101132320 |
7 | 6200152266 |
oct | 1707556370 |
9 | 580308673 |
10 | 253680888 |
11 | 12021822a |
12 | 70b5a0a0 |
13 | 40730c46 |
14 | 25997436 |
15 | 1740ea93 |
hex | f1edcf8 |
253680888 has 32 divisors (see below), whose sum is σ = 635990400. Its totient is φ = 84321888.
The previous prime is 253680887. The next prime is 253680971. The reversal of 253680888 is 888086352.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (253680887) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6106 + ... + 23337.
It is an arithmetic number, because the mean of its divisors is an integer number (19874700).
Almost surely, 2253680888 is an apocalyptic number.
It is an amenable number.
253680888 is an abundant number, since it is smaller than the sum of its proper divisors (382309512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
253680888 is a wasteful number, since it uses less digits than its factorization.
253680888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29811 (or 29807 counting only the distinct ones).
The product of its (nonzero) digits is 737280, while the sum is 48.
The square root of 253680888 is about 15927.3628702306. The cubic root of 253680888 is about 633.0372261848.
The spelling of 253680888 in words is "two hundred fifty-three million, six hundred eighty thousand, eight hundred eighty-eight".
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