Base | Representation |
---|---|
bin | 11110001101101… |
… | …01101100010111 |
3 | 122122220122110020 |
4 | 33012311230113 |
5 | 1004340413111 |
6 | 41052200223 |
7 | 6165204201 |
oct | 1706655427 |
9 | 578818406 |
10 | 253451031 |
11 | 120080569 |
12 | 70a69073 |
13 | 40680432 |
14 | 25937771 |
15 | 173b6906 |
hex | f1b5b17 |
253451031 has 8 divisors (see below), whose sum is σ = 338008320. Its totient is φ = 168930552.
The previous prime is 253451021. The next prime is 253451059. The reversal of 253451031 is 130154352.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 253451031 - 27 = 253450903 is a prime.
It is a super-2 number, since 2×2534510312 = 128474850229925922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 253450992 and 253451010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (253451021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21540 + ... + 31158.
It is an arithmetic number, because the mean of its divisors is an integer number (42251040).
Almost surely, 2253451031 is an apocalyptic number.
253451031 is a deficient number, since it is larger than the sum of its proper divisors (84557289).
253451031 is an equidigital number, since it uses as much as digits as its factorization.
253451031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18405.
The product of its (nonzero) digits is 1800, while the sum is 24.
The square root of 253451031 is about 15920.1454453155. The cubic root of 253451031 is about 632.8459727711.
The spelling of 253451031 in words is "two hundred fifty-three million, four hundred fifty-one thousand, thirty-one".
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