Base | Representation |
---|---|
bin | 111001111111… |
… | …1101111110101 |
3 | 2010012212110222 |
4 | 1303333233311 |
5 | 30241021134 |
6 | 3003424125 |
7 | 516314045 |
oct | 163775765 |
9 | 63185428 |
10 | 30407669 |
11 | 16189806 |
12 | a225045 |
13 | 63b8706 |
14 | 4077725 |
15 | 2a09a2e |
hex | 1cffbf5 |
30407669 has 2 divisors, whose sum is σ = 30407670. Its totient is φ = 30407668.
The previous prime is 30407623. The next prime is 30407681. The reversal of 30407669 is 96670403.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 19272100 + 11135569 = 4390^2 + 3337^2 .
It is a cyclic number.
It is not a de Polignac number, because 30407669 - 28 = 30407413 is a prime.
It is a super-2 number, since 2×304076692 = 1849252668027122, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30407369) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15203834 + 15203835.
It is an arithmetic number, because the mean of its divisors is an integer number (15203835).
Almost surely, 230407669 is an apocalyptic number.
It is an amenable number.
30407669 is a deficient number, since it is larger than the sum of its proper divisors (1).
30407669 is an equidigital number, since it uses as much as digits as its factorization.
30407669 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 27216, while the sum is 35.
The square root of 30407669 is about 5514.3149166510. The cubic root of 30407669 is about 312.1243922411.
The spelling of 30407669 in words is "thirty million, four hundred seven thousand, six hundred sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.080 sec. • engine limits •