Base | Representation |
---|---|
bin | 111111111111100101… |
… | …111111010011001100 |
3 | 20120100200222200210212 |
4 | 333333211333103030 |
5 | 2111210420024444 |
6 | 51322142421552 |
7 | 4651522646225 |
oct | 777745772314 |
9 | 216320880725 |
10 | 68712658124 |
11 | 27160560070 |
12 | 113978918b8 |
13 | 66308220b6 |
14 | 347ba6c24c |
15 | 1bc25c119e |
hex | fff97f4cc |
68712658124 has 48 divisors (see below), whose sum is σ = 132214612992. Its totient is φ = 30987360000.
The previous prime is 68712658121. The next prime is 68712658211. The reversal of 68712658124 is 42185621786.
It is not an unprimeable number, because it can be changed into a prime (68712658121) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2861729 + ... + 2885639.
It is an arithmetic number, because the mean of its divisors is an integer number (2754471104).
Almost surely, 268712658124 is an apocalyptic number.
It is an amenable number.
68712658124 is a deficient number, since it is larger than the sum of its proper divisors (63501954868).
68712658124 is a wasteful number, since it uses less digits than its factorization.
68712658124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24438 (or 24436 counting only the distinct ones).
The product of its digits is 1290240, while the sum is 50.
The spelling of 68712658124 in words is "sixty-eight billion, seven hundred twelve million, six hundred fifty-eight thousand, one hundred twenty-four".
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