Base | Representation |
---|---|
bin | 11100000010110101… |
… | …010000110000011000 |
3 | 2212201120120201020100 |
4 | 130002311100300120 |
5 | 443132221202033 |
6 | 21500002455400 |
7 | 2114132136303 |
oct | 340265206030 |
9 | 85646521210 |
10 | 30112287768 |
11 | 11852668542 |
12 | 5a04664560 |
13 | 2abb71b874 |
14 | 1659317b3a |
15 | bb3909513 |
hex | 702d50c18 |
30112287768 has 96 divisors (see below), whose sum is σ = 82610377200. Its totient is φ = 9907814400.
The previous prime is 30112287767. The next prime is 30112287797. The reversal of 30112287768 is 86778221103.
30112287768 is a `hidden beast` number, since 301 + 1 + 2 + 287 + 7 + 68 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30112287767) 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 23 ways as a sum of consecutive naturals, for example, 4103863 + ... + 4111193.
Almost surely, 230112287768 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 30112287768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41305188600).
30112287768 is an abundant number, since it is smaller than the sum of its proper divisors (52498089432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30112287768 is a wasteful number, since it uses less digits than its factorization.
30112287768 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8073 (or 8066 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 45.
The spelling of 30112287768 in words is "thirty billion, one hundred twelve million, two hundred eighty-seven thousand, seven hundred sixty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •