Base | Representation |
---|---|
bin | 11011011010110… |
… | …11011001100001 |
3 | 121000210211211222 |
4 | 31231123121201 |
5 | 432340400023 |
6 | 34453544425 |
7 | 5462034263 |
oct | 1555333141 |
9 | 530724758 |
10 | 230012513 |
11 | 108921895 |
12 | 65045115 |
13 | 38864ba3 |
14 | 22795b33 |
15 | 152d6cc8 |
hex | db5b661 |
230012513 has 2 divisors, whose sum is σ = 230012514. Its totient is φ = 230012512.
The previous prime is 230012509. The next prime is 230012539. The reversal of 230012513 is 315210032.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 192460129 + 37552384 = 13873^2 + 6128^2 .
It is a cyclic number.
It is not a de Polignac number, because 230012513 - 22 = 230012509 is a prime.
It is a super-2 number, since 2×2300125132 = 105811512273150338, which contains 22 as substring.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 230012491 and 230012500.
It is not a weakly prime, because it can be changed into another prime (230012413) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115006256 + 115006257.
It is an arithmetic number, because the mean of its divisors is an integer number (115006257).
Almost surely, 2230012513 is an apocalyptic number.
It is an amenable number.
230012513 is a deficient number, since it is larger than the sum of its proper divisors (1).
230012513 is an equidigital number, since it uses as much as digits as its factorization.
230012513 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 180, while the sum is 17.
The square root of 230012513 is about 15166.1634238854. The cubic root of 230012513 is about 612.7036783679.
Adding to 230012513 its reverse (315210032), we get a palindrome (545222545).
The spelling of 230012513 in words is "two hundred thirty million, twelve thousand, five hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •