Base | Representation |
---|---|
bin | 1101000000000101… |
… | …01010100110100001 |
3 | 200000110010210021000 |
4 | 12200002222212201 |
5 | 103243341130031 |
6 | 3112342022213 |
7 | 334654124256 |
oct | 64002524641 |
9 | 20013123230 |
10 | 6980020641 |
11 | 2a62048900 |
12 | 1429717969 |
13 | 87312c039 |
14 | 4a303942d |
15 | 2acbbe3e6 |
hex | 1a00aa9a1 |
6980020641 has 48 divisors (see below), whose sum is σ = 11382033600. Its totient is φ = 4224464640.
The previous prime is 6980020631. The next prime is 6980020679. The reversal of 6980020641 is 1460200896.
6980020641 is a `hidden beast` number, since 6 + 9 + 8 + 0 + 0 + 2 + 0 + 641 = 666.
It is not a de Polignac number, because 6980020641 - 213 = 6980012449 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 6980020596 and 6980020605.
It is not an unprimeable number, because it can be changed into a prime (6980020631) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4112305 + ... + 4114001.
It is an arithmetic number, because the mean of its divisors is an integer number (237125700).
Almost surely, 26980020641 is an apocalyptic number.
It is an amenable number.
6980020641 is a deficient number, since it is larger than the sum of its proper divisors (4402012959).
6980020641 is a wasteful number, since it uses less digits than its factorization.
6980020641 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2987 (or 2970 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The square root of 6980020641 is about 83546.5178268969. The cubic root of 6980020641 is about 1911.1094895236.
The spelling of 6980020641 in words is "six billion, nine hundred eighty million, twenty thousand, six hundred forty-one".
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