Base | Representation |
---|---|
bin | 1000001110010… |
… | …00110101010000 |
3 | 11210210112211121 |
4 | 10013020311100 |
5 | 120124330143 |
6 | 10502252024 |
7 | 1465215004 |
oct | 407106520 |
9 | 153715747 |
10 | 68980048 |
11 | 35a34805 |
12 | 1b127014 |
13 | 113a24c7 |
14 | 9238704 |
15 | 60c87ed |
hex | 41c8d50 |
68980048 has 20 divisors (see below), whose sum is σ = 134628660. Its totient is φ = 34237184.
The previous prime is 68980031. The next prime is 68980057. The reversal of 68980048 is 84008986.
It can be written as a sum of positive squares in 2 ways, for example, as 36626704 + 32353344 = 6052^2 + 5688^2 .
It is a junction number, because it is equal to n+sod(n) for n = 68979986 and 68980013.
It is a congruent number.
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, 13543 + ... + 17926.
It is an arithmetic number, because the mean of its divisors is an integer number (6731433).
Almost surely, 268980048 is an apocalyptic number.
It is an amenable number.
68980048 is a deficient number, since it is larger than the sum of its proper divisors (65648612).
68980048 is a wasteful number, since it uses less digits than its factorization.
68980048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31614 (or 31608 counting only the distinct ones).
The product of its (nonzero) digits is 110592, while the sum is 43.
The square root of 68980048 is about 8305.4228068172. The cubic root of 68980048 is about 410.1170556116.
The spelling of 68980048 in words is "sixty-eight million, nine hundred eighty thousand, forty-eight".
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