Base | Representation |
---|---|
bin | 11011011110101… |
… | …01101111001101 |
3 | 121001202022020020 |
4 | 31233111233031 |
5 | 433002413423 |
6 | 34512412353 |
7 | 5466222231 |
oct | 1557255715 |
9 | 531668206 |
10 | 230513613 |
11 | 109134320 |
12 | 652470b9 |
13 | 389abcb5 |
14 | 228865c1 |
15 | 153854e3 |
hex | dbd5bcd |
230513613 has 64 divisors (see below), whose sum is σ = 368492544. Its totient is φ = 126720000.
The previous prime is 230513593. The next prime is 230513617. The reversal of 230513613 is 316315032.
It is a happy number.
It is not a de Polignac number, because 230513613 - 210 = 230512589 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230513617) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2282263 + ... + 2282363.
It is an arithmetic number, because the mean of its divisors is an integer number (5757696).
Almost surely, 2230513613 is an apocalyptic number.
230513613 is a gapful number since it is divisible by the number (23) formed by its first and last digit.
It is an amenable number.
230513613 is a deficient number, since it is larger than the sum of its proper divisors (137978931).
230513613 is a wasteful number, since it uses less digits than its factorization.
230513613 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 266.
The product of its (nonzero) digits is 1620, while the sum is 24.
The square root of 230513613 is about 15182.6747643490. The cubic root of 230513613 is about 613.1482963858.
Adding to 230513613 its reverse (316315032), we get a palindrome (546828645).
The spelling of 230513613 in words is "two hundred thirty million, five hundred thirteen thousand, six hundred thirteen".
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