Base | Representation |
---|---|
bin | 111010011101… |
… | …1001000010011 |
3 | 2010200020010111 |
4 | 1310323020103 |
5 | 30321312044 |
6 | 3012542151 |
7 | 521346136 |
oct | 164731023 |
9 | 63606114 |
10 | 30650899 |
11 | 16335524 |
12 | a321957 |
13 | 6472336 |
14 | 40dc21d |
15 | 2a56b34 |
hex | 1d3b213 |
30650899 has 4 divisors (see below), whose sum is σ = 30937464. Its totient is φ = 30364336.
The previous prime is 30650897. The next prime is 30650947. The reversal of 30650899 is 99805603.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30650899 - 21 = 30650897 is a prime.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30650891) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143122 + ... + 143335.
It is an arithmetic number, because the mean of its divisors is an integer number (7734366).
Almost surely, 230650899 is an apocalyptic number.
30650899 is a deficient number, since it is larger than the sum of its proper divisors (286565).
30650899 is a wasteful number, since it uses less digits than its factorization.
30650899 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 286564.
The product of its (nonzero) digits is 58320, while the sum is 40.
The square root of 30650899 is about 5536.3254058988. The cubic root of 30650899 is about 312.9544075106.
The spelling of 30650899 in words is "thirty million, six hundred fifty thousand, eight hundred ninety-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •