Base | Representation |
---|---|
bin | 1101000000000101… |
… | …00110110001110101 |
3 | 200000110002222210000 |
4 | 12200002212301311 |
5 | 103243340124411 |
6 | 3112341421513 |
7 | 334654030515 |
oct | 64002466165 |
9 | 20013088700 |
10 | 6980004981 |
11 | 2a62038064 |
12 | 142970a899 |
13 | 873124b81 |
14 | 4a3033845 |
15 | 2acbb9956 |
hex | 1a00a6c75 |
6980004981 has 20 divisors (see below), whose sum is σ = 10763277184. Its totient is φ = 4503227400.
The previous prime is 6980004973. The next prime is 6980004989. The reversal of 6980004981 is 1894000896.
It is an interprime number because it is at equal distance from previous prime (6980004973) and next prime (6980004989).
It is not a de Polignac number, because 6980004981 - 23 = 6980004973 is a prime.
It is a super-2 number, since 2×69800049812 = 97440939069569620722, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6980004989) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1387375 + ... + 1392396.
Almost surely, 26980004981 is an apocalyptic number.
It is an amenable number.
6980004981 is a deficient number, since it is larger than the sum of its proper divisors (3783272203).
6980004981 is a wasteful number, since it uses less digits than its factorization.
6980004981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2779814 (or 2779805 counting only the distinct ones).
The product of its (nonzero) digits is 124416, while the sum is 45.
The square root of 6980004981 is about 83546.4241066008. The cubic root of 6980004981 is about 1911.1080603016.
The spelling of 6980004981 in words is "six billion, nine hundred eighty million, four thousand, nine hundred eighty-one".
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