Base | Representation |
---|---|
bin | 11101111010110110001 |
3 | 1211210212011 |
4 | 3233112301 |
5 | 222333101 |
6 | 33002521 |
7 | 11222212 |
oct | 3572661 |
9 | 1753764 |
10 | 980401 |
11 | 60a654 |
12 | 3b3441 |
13 | 284326 |
14 | 1b7409 |
15 | 145751 |
hex | ef5b1 |
980401 has 2 divisors, whose sum is σ = 980402. Its totient is φ = 980400.
The previous prime is 980393. The next prime is 980417. The reversal of 980401 is 104089.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 602176 + 378225 = 776^2 + 615^2 .
It is an emirp because it is prime and its reverse (104089) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 980401 - 23 = 980393 is a prime.
It is a super-2 number, since 2×9804012 = 1922372241602, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (980431) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490200 + 490201.
It is an arithmetic number, because the mean of its divisors is an integer number (490201).
2980401 is an apocalyptic number.
It is an amenable number.
980401 is a deficient number, since it is larger than the sum of its proper divisors (1).
980401 is an equidigital number, since it uses as much as digits as its factorization.
980401 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 288, while the sum is 22.
The square root of 980401 is about 990.1520085320. The cubic root of 980401 is about 99.3423849035.
The spelling of 980401 in words is "nine hundred eighty thousand, four hundred one".
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