Base | Representation |
---|---|
bin | 11011011111101… |
… | …10100011001101 |
3 | 121002000010121000 |
4 | 31233312203031 |
5 | 433021214023 |
6 | 34515330513 |
7 | 5500322121 |
oct | 1557664315 |
9 | 532003530 |
10 | 230648013 |
11 | 1092162a2 |
12 | 652b0a39 |
13 | 38a2821b |
14 | 228bd581 |
15 | 153b0243 |
hex | dbf68cd |
230648013 has 8 divisors (see below), whose sum is σ = 341700800. Its totient is φ = 153765324.
The previous prime is 230648009. The next prime is 230648021. The reversal of 230648013 is 310846032.
It is a happy number.
230648013 is a `hidden beast` number, since 2 + 3 + 0 + 648 + 0 + 13 = 666.
It is not a de Polignac number, because 230648013 - 22 = 230648009 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8542519 = 230648013 / (2 + 3 + 0 + 6 + 4 + 8 + 0 + 1 + 3).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230640013) 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, 4271233 + ... + 4271286.
It is an arithmetic number, because the mean of its divisors is an integer number (42712600).
Almost surely, 2230648013 is an apocalyptic number.
It is an amenable number.
230648013 is a deficient number, since it is larger than the sum of its proper divisors (111052787).
230648013 is an equidigital number, since it uses as much as digits as its factorization.
230648013 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8542528 (or 8542522 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 27.
The square root of 230648013 is about 15187.1002169604. The cubic root of 230648013 is about 613.2674377522.
The spelling of 230648013 in words is "two hundred thirty million, six hundred forty-eight thousand, thirteen".
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