Base | Representation |
---|---|
bin | 111010011011111… |
… | …000001101111001 |
3 | 2112022202210200211 |
4 | 322123320031321 |
5 | 4001434333211 |
6 | 241141031121 |
7 | 33203102131 |
oct | 7233701571 |
9 | 2468683624 |
10 | 980386681 |
11 | 46344802a |
12 | 2343b54a1 |
13 | 128160a81 |
14 | 942c3ac1 |
15 | 5b109e21 |
hex | 3a6f8379 |
980386681 has 8 divisors (see below), whose sum is σ = 1037691200. Its totient is φ = 923652720.
The previous prime is 980386639. The next prime is 980386721. The reversal of 980386681 is 186683089.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 980386681 - 27 = 980386553 is a prime.
It is a super-2 number, since 2×9803866812 = 1922316088564391522, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (980389681) 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, 139101 + ... + 145978.
It is an arithmetic number, because the mean of its divisors is an integer number (129711400).
Almost surely, 2980386681 is an apocalyptic number.
It is an amenable number.
980386681 is a deficient number, since it is larger than the sum of its proper divisors (57304519).
980386681 is a wasteful number, since it uses less digits than its factorization.
980386681 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 285279.
The product of its (nonzero) digits is 497664, while the sum is 49.
The square root of 980386681 is about 31311.1271116196. The cubic root of 980386681 is about 993.4190126112.
The spelling of 980386681 in words is "nine hundred eighty million, three hundred eighty-six thousand, six hundred eighty-one".
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