Base | Representation |
---|---|
bin | 111111111101010000… |
… | …100100010011001000 |
3 | 20120020222021122121012 |
4 | 333331100210103020 |
5 | 2111120403104242 |
6 | 51314223103052 |
7 | 4650536005640 |
oct | 777520442310 |
9 | 216228248535 |
10 | 68673488072 |
11 | 27140437022 |
12 | 11386741a88 |
13 | 6625689257 |
14 | 3476793520 |
15 | 1bbde35282 |
hex | ffd4244c8 |
68673488072 has 16 divisors (see below), whose sum is σ = 147157474560. Its totient is φ = 29431494864.
The previous prime is 68673488063. The next prime is 68673488111. The reversal of 68673488072 is 27088437686.
It is a happy number.
68673488072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613156088 + ... + 613156199.
It is an arithmetic number, because the mean of its divisors is an integer number (9197342160).
Almost surely, 268673488072 is an apocalyptic number.
It is an amenable number.
68673488072 is an abundant number, since it is smaller than the sum of its proper divisors (78483986488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68673488072 is a wasteful number, since it uses less digits than its factorization.
68673488072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1226312300 (or 1226312296 counting only the distinct ones).
The product of its (nonzero) digits is 21676032, while the sum is 59.
The spelling of 68673488072 in words is "sixty-eight billion, six hundred seventy-three million, four hundred eighty-eight thousand, seventy-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.061 sec. • engine limits •