Base | Representation |
---|---|
bin | 1001010011101… |
… | …10101110010000 |
3 | 12102220220212122 |
4 | 10221312232100 |
5 | 124442042122 |
6 | 11425313412 |
7 | 1635451100 |
oct | 451665620 |
9 | 172826778 |
10 | 78080912 |
11 | 40090388 |
12 | 22195868 |
13 | 1323aa30 |
14 | a527200 |
15 | 6cc5142 |
hex | 4a76b90 |
78080912 has 120 divisors (see below), whose sum is σ = 194737536. Its totient is φ = 30046464.
The previous prime is 78080897. The next prime is 78080921. The reversal of 78080912 is 21908087.
It is a happy number.
It is an unprimeable number.
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, 478943 + ... + 479105.
Almost surely, 278080912 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 78080912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97368768).
78080912 is an abundant number, since it is smaller than the sum of its proper divisors (116656624).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78080912 is a wasteful number, since it uses less digits than its factorization.
78080912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 245 (or 232 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 35.
The square root of 78080912 is about 8836.3404189744. The cubic root of 78080912 is about 427.4135561567.
Adding to 78080912 its reverse (21908087), we get a palindrome (99988999).
The spelling of 78080912 in words is "seventy-eight million, eighty thousand, nine hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •