Base | Representation |
---|---|
bin | 1110110111010111… |
… | …00001011111010100 |
3 | 202121011212211012222 |
4 | 13123223201133110 |
5 | 112321012240324 |
6 | 3355523401512 |
7 | 401523604250 |
oct | 73353413724 |
9 | 22534784188 |
10 | 7980586964 |
11 | 3425919119 |
12 | 1668823298 |
13 | 9a2506c0c |
14 | 559c93260 |
15 | 31a96355e |
hex | 1dbae17d4 |
7980586964 has 24 divisors (see below), whose sum is σ = 16900067520. Its totient is φ = 3219060096.
The previous prime is 7980586963. The next prime is 7980586969. The reversal of 7980586964 is 4696850897.
It is a junction number, because it is equal to n+sod(n) for n = 7980586897 and 7980586906.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7980586963) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8382494 + ... + 8383445.
It is an arithmetic number, because the mean of its divisors is an integer number (704169480).
Almost surely, 27980586964 is an apocalyptic number.
It is an amenable number.
7980586964 is an abundant number, since it is smaller than the sum of its proper divisors (8919480556).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7980586964 is a wasteful number, since it uses less digits than its factorization.
7980586964 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16765967 (or 16765965 counting only the distinct ones).
The product of its (nonzero) digits is 26127360, while the sum is 62.
The square root of 7980586964 is about 89334.1310138516. The cubic root of 7980586964 is about 1998.3809366706.
The spelling of 7980586964 in words is "seven billion, nine hundred eighty million, five hundred eighty-six thousand, nine hundred sixty-four".
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