Base | Representation |
---|---|
bin | 111001001110… |
… | …1011100100011 |
3 | 2002110102011022 |
4 | 1302131130203 |
5 | 30140130102 |
6 | 2551040055 |
7 | 513016133 |
oct | 162353443 |
9 | 62412138 |
10 | 30005027 |
11 | 15a34248 |
12 | a07002b |
13 | 62a7370 |
14 | 3db0ac3 |
15 | 297a5a2 |
hex | 1c9d723 |
30005027 has 4 divisors (see below), whose sum is σ = 32313120. Its totient is φ = 27696936.
The previous prime is 30005023. The next prime is 30005029. The reversal of 30005027 is 72050003.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72050003 = 349 ⋅206447.
It is a cyclic number.
It is not a de Polignac number, because 30005027 - 22 = 30005023 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30004996 and 30005014.
It is not an unprimeable number, because it can be changed into a prime (30005023) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154027 + ... + 1154052.
It is an arithmetic number, because the mean of its divisors is an integer number (8078280).
Almost surely, 230005027 is an apocalyptic number.
30005027 is a deficient number, since it is larger than the sum of its proper divisors (2308093).
30005027 is a wasteful number, since it uses less digits than its factorization.
30005027 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2308092.
The product of its (nonzero) digits is 210, while the sum is 17.
The square root of 30005027 is about 5477.6844560453. The cubic root of 30005027 is about 310.7406052459.
The spelling of 30005027 in words is "thirty million, five thousand, twenty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •