Base | Representation |
---|---|
bin | 11110110101100… |
… | …00010110011111 |
3 | 200000201220022121 |
4 | 33122300112133 |
5 | 1012210001111 |
6 | 41400123411 |
7 | 6260450602 |
oct | 1732602637 |
9 | 600656277 |
10 | 258672031 |
11 | 123017142 |
12 | 72766567 |
13 | 4178a997 |
14 | 264d6339 |
15 | 17a98871 |
hex | f6b059f |
258672031 has 2 divisors, whose sum is σ = 258672032. Its totient is φ = 258672030.
The previous prime is 258672019. The next prime is 258672049. The reversal of 258672031 is 130276852.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 258672031 - 29 = 258671519 is a prime.
It is a super-2 number, since 2×2586720312 = 133822439243329922, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (258672331) 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 as a sum of consecutive naturals, namely, 129336015 + 129336016.
It is an arithmetic number, because the mean of its divisors is an integer number (129336016).
Almost surely, 2258672031 is an apocalyptic number.
258672031 is a deficient number, since it is larger than the sum of its proper divisors (1).
258672031 is an equidigital number, since it uses as much as digits as its factorization.
258672031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 20160, while the sum is 34.
The square root of 258672031 is about 16083.2842106331. The cubic root of 258672031 is about 637.1619376887.
The spelling of 258672031 in words is "two hundred fifty-eight million, six hundred seventy-two thousand, thirty-one".
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