Base | Representation |
---|---|
bin | 100000111001111100… |
… | …1101001111010110111 |
3 | 20202101200201122011010 |
4 | 1001303321221322313 |
5 | 2124204434023422 |
6 | 52243530043303 |
7 | 5051055560445 |
oct | 1016371517267 |
9 | 222350648133 |
10 | 70663970487 |
11 | 27a71a72a10 |
12 | 11841279533 |
13 | 6881b804b6 |
14 | 35c4c91b95 |
15 | 1c88a67b0c |
hex | 1073e69eb7 |
70663970487 has 16 divisors (see below), whose sum is σ = 102789878400. Its totient is φ = 42824181600.
The previous prime is 70663970449. The next prime is 70663970491. The reversal of 70663970487 is 78407936607.
It is not a de Polignac number, because 70663970487 - 210 = 70663969463 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70663974487) 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, 638437 + ... + 740897.
It is an arithmetic number, because the mean of its divisors is an integer number (6424367400).
Almost surely, 270663970487 is an apocalyptic number.
70663970487 is a deficient number, since it is larger than the sum of its proper divisors (32125907913).
70663970487 is a wasteful number, since it uses less digits than its factorization.
70663970487 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 123374.
The product of its (nonzero) digits is 10668672, while the sum is 57.
The spelling of 70663970487 in words is "seventy billion, six hundred sixty-three million, nine hundred seventy thousand, four hundred eighty-seven".
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