Base | Representation |
---|---|
bin | 111111110101111101… |
… | …001100110110100110 |
3 | 20112221102202010111002 |
4 | 333311331030312212 |
5 | 2110343022031130 |
6 | 51254125113302 |
7 | 4644520431461 |
oct | 776575146646 |
9 | 215842663432 |
10 | 68550970790 |
11 | 27088265a75 |
12 | 113516b8832 |
13 | 6606190613 |
14 | 34643c02d8 |
15 | 1bb32d3b45 |
hex | ff5f4cda6 |
68550970790 has 16 divisors (see below), whose sum is σ = 123414252912. Its totient is φ = 27415387104.
The previous prime is 68550970781. The next prime is 68550970819. The reversal of 68550970790 is 9707905586.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567329 + ... + 677468.
It is an arithmetic number, because the mean of its divisors is an integer number (7713390807).
Almost surely, 268550970790 is an apocalyptic number.
68550970790 is a deficient number, since it is larger than the sum of its proper divisors (54863282122).
68550970790 is a wasteful number, since it uses less digits than its factorization.
68550970790 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1250311.
The product of its (nonzero) digits is 4762800, while the sum is 56.
The spelling of 68550970790 in words is "sixty-eight billion, five hundred fifty million, nine hundred seventy thousand, seven hundred ninety".
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