Base | Representation |
---|---|
bin | 101011010101011111111 |
3 | 2200010220202 |
4 | 11122223333 |
5 | 330420111 |
6 | 50234115 |
7 | 15033014 |
oct | 5325377 |
9 | 2603822 |
10 | 1420031 |
11 | 88a988 |
12 | 58593b |
13 | 3a9472 |
14 | 28d70b |
15 | 1d0b3b |
hex | 15aaff |
1420031 has 2 divisors, whose sum is σ = 1420032. Its totient is φ = 1420030.
The previous prime is 1420009. The next prime is 1420037. The reversal of 1420031 is 1300241.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1420031 - 26 = 1419967 is a prime.
It is a super-2 number, since 2×14200312 = 4032976081922, which contains 22 as substring.
It is a Chen prime.
It is a plaindrome in base 4 and base 16.
It is a zygodrome in base 4.
It is a junction number, because it is equal to n+sod(n) for n = 1419994 and 1420021.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1420037) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710015 + 710016.
It is an arithmetic number, because the mean of its divisors is an integer number (710016).
21420031 is an apocalyptic number.
1420031 is a deficient number, since it is larger than the sum of its proper divisors (1).
1420031 is an equidigital number, since it uses as much as digits as its factorization.
1420031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 1420031 is about 1191.6505360214. The cubic root of 1420031 is about 112.3999043831.
Adding to 1420031 its reverse (1300241), we get a palindrome (2720272).
The spelling of 1420031 in words is "one million, four hundred twenty thousand, thirty-one".
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