Base | Representation |
---|---|
bin | 111001111100… |
… | …1001000010011 |
3 | 2010011111022001 |
4 | 1303321020103 |
5 | 30234134223 |
6 | 3003054431 |
7 | 516142033 |
oct | 163711023 |
9 | 63144261 |
10 | 30380563 |
11 | 16170404 |
12 | a211417 |
13 | 63a9285 |
14 | 406b8c3 |
15 | 2a019ad |
hex | 1cf9213 |
30380563 has 8 divisors (see below), whose sum is σ = 32030720. Its totient is φ = 28735560.
The previous prime is 30380557. The next prime is 30380569. The reversal of 30380563 is 36508303.
It is an interprime number because it is at equal distance from previous prime (30380557) and next prime (30380569).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30380563 - 25 = 30380531 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30380569) 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 7 ways as a sum of consecutive naturals, for example, 19918 + ... + 21388.
It is an arithmetic number, because the mean of its divisors is an integer number (4003840).
Almost surely, 230380563 is an apocalyptic number.
30380563 is a deficient number, since it is larger than the sum of its proper divisors (1650157).
30380563 is a wasteful number, since it uses less digits than its factorization.
30380563 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2577.
The product of its (nonzero) digits is 6480, while the sum is 28.
The square root of 30380563 is about 5511.8565837656. The cubic root of 30380563 is about 312.0316200421.
Adding to 30380563 its reverse (36508303), we get a palindrome (66888866).
The spelling of 30380563 in words is "thirty million, three hundred eighty thousand, five hundred sixty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •