Base | Representation |
---|---|
bin | 11110001100001… |
… | …11011000010011 |
3 | 122122120000020022 |
4 | 33012013120103 |
5 | 1004313330311 |
6 | 41044134055 |
7 | 6163454141 |
oct | 1706073023 |
9 | 578500208 |
10 | 253261331 |
11 | 11aa60a94 |
12 | 7099732b |
13 | 40614c9b |
14 | 258c8591 |
15 | 1737a5db |
hex | f187613 |
253261331 has 8 divisors (see below), whose sum is σ = 257320800. Its totient is φ = 249215680.
The previous prime is 253261313. The next prime is 253261339. The reversal of 253261331 is 133162352.
253261331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 253261331 - 226 = 186152467 is a prime.
It is a super-2 number, since 2×2532613312 = 128282603559783122, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 253261331.
It is not an unprimeable number, because it can be changed into a prime (253261339) 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, 37265 + ... + 43533.
It is an arithmetic number, because the mean of its divisors is an integer number (32165100).
Almost surely, 2253261331 is an apocalyptic number.
253261331 is a deficient number, since it is larger than the sum of its proper divisors (4059469).
253261331 is an equidigital number, since it uses as much as digits as its factorization.
253261331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6909.
The product of its digits is 3240, while the sum is 26.
The square root of 253261331 is about 15914.1864699393. The cubic root of 253261331 is about 632.6880450320.
The spelling of 253261331 in words is "two hundred fifty-three million, two hundred sixty-one thousand, three hundred thirty-one".
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