Base | Representation |
---|---|
bin | 100000110100110000… |
… | …1101001111010110000 |
3 | 20201221120012021202021 |
4 | 1001221201221322300 |
5 | 2123330404004424 |
6 | 52214351201224 |
7 | 5043543215356 |
oct | 1015141517260 |
9 | 221846167667 |
10 | 70489906864 |
11 | 27992795383 |
12 | 117b2b16214 |
13 | 6854aa7680 |
14 | 35a9b017d6 |
15 | 1c786334e4 |
hex | 1069869eb0 |
70489906864 has 40 divisors (see below), whose sum is σ = 147850036992. Its totient is φ = 32363450880.
The previous prime is 70489906813. The next prime is 70489906873. The reversal of 70489906864 is 46860998407.
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, 847429 + ... + 926884.
Almost surely, 270489906864 is an apocalyptic number.
It is an amenable number.
70489906864 is an abundant number, since it is smaller than the sum of its proper divisors (77360130128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70489906864 is a wasteful number, since it uses less digits than its factorization.
70489906864 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1774525 (or 1774519 counting only the distinct ones).
The product of its (nonzero) digits is 20901888, while the sum is 61.
The spelling of 70489906864 in words is "seventy billion, four hundred eighty-nine million, nine hundred six thousand, eight hundred sixty-four".
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