Base | Representation |
---|---|
bin | 111001111110… |
… | …0110100010100 |
3 | 2010012021000111 |
4 | 1303330310110 |
5 | 30240130133 |
6 | 3003252404 |
7 | 516234052 |
oct | 163746424 |
9 | 63167014 |
10 | 30395668 |
11 | 16180796 |
12 | a21a104 |
13 | 63b3104 |
14 | 40731d2 |
15 | 2a061cd |
hex | 1cfcd14 |
30395668 has 48 divisors (see below), whose sum is σ = 58544640. Its totient is φ = 13759200.
The previous prime is 30395663. The next prime is 30395669. The reversal of 30395668 is 86659303.
It is a self number, because there is not a number n which added to its sum of digits gives 30395668.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30395663) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231963 + ... + 232093.
It is an arithmetic number, because the mean of its divisors is an integer number (1219680).
Almost surely, 230395668 is an apocalyptic number.
30395668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.
It is an amenable number.
30395668 is a deficient number, since it is larger than the sum of its proper divisors (28148972).
30395668 is a wasteful number, since it uses less digits than its factorization.
30395668 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 268 (or 266 counting only the distinct ones).
The product of its (nonzero) digits is 116640, while the sum is 40.
The square root of 30395668 is about 5513.2266414505. The cubic root of 30395668 is about 312.0833247752.
The spelling of 30395668 in words is "thirty million, three hundred ninety-five thousand, six hundred sixty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.093 sec. • engine limits •