Base | Representation |
---|---|
bin | 111010101011… |
… | …0101000110000 |
3 | 2010212221200102 |
4 | 1311112220300 |
5 | 30333413233 |
6 | 3015211532 |
7 | 522325463 |
oct | 165265060 |
9 | 63787612 |
10 | 30763568 |
11 | 16402140 |
12 | a376ba8 |
13 | 64b16c4 |
14 | 412b2da |
15 | 2a7a1e8 |
hex | 1d56a30 |
30763568 has 40 divisors (see below), whose sum is σ = 66424320. Its totient is φ = 13682240.
The previous prime is 30763567. The next prime is 30763633. The reversal of 30763568 is 86536703.
It is not an unprimeable number, because it can be changed into a prime (30763561) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6413 + ... + 10131.
It is an arithmetic number, because the mean of its divisors is an integer number (1660608).
Almost surely, 230763568 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30763568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33212160).
30763568 is an abundant number, since it is smaller than the sum of its proper divisors (35660752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30763568 is a wasteful number, since it uses less digits than its factorization.
30763568 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3785 (or 3779 counting only the distinct ones).
The product of its (nonzero) digits is 90720, while the sum is 38.
The square root of 30763568 is about 5546.4915036444. The cubic root of 30763568 is about 313.3373994744.
It can be divided in two parts, 307635 and 68, that added together give a palindrome (307703).
The spelling of 30763568 in words is "thirty million, seven hundred sixty-three thousand, five hundred sixty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •