Base | Representation |
---|---|
bin | 101010101001111… |
… | …0000110011111111 |
3 | 10200202010201201012 |
4 | 1111103300303333 |
5 | 10412344302111 |
6 | 354004305435 |
7 | 50316242060 |
oct | 12523606377 |
9 | 3622121635 |
10 | 1431244031 |
11 | 674999908 |
12 | 33b3a227b |
13 | 19a69aa79 |
14 | d8126567 |
15 | 859b748b |
hex | 554f0cff |
1431244031 has 8 divisors (see below), whose sum is σ = 1675603104. Its totient is φ = 1196858880.
The previous prime is 1431244013. The next prime is 1431244039. The reversal of 1431244031 is 1304421341.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1431244031 - 26 = 1431243967 is a prime.
It is a super-2 number, since 2×14312440312 = 4096918952546257922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1431243988 and 1431244006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1431244039) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2493170 + ... + 2493743.
It is an arithmetic number, because the mean of its divisors is an integer number (209450388).
Almost surely, 21431244031 is an apocalyptic number.
1431244031 is a deficient number, since it is larger than the sum of its proper divisors (244359073).
1431244031 is an equidigital number, since it uses as much as digits as its factorization.
1431244031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4986961.
The product of its (nonzero) digits is 1152, while the sum is 23.
The square root of 1431244031 is about 37831.7859874471. The cubic root of 1431244031 is about 1126.9497792410.
Adding to 1431244031 its reverse (1304421341), we get a palindrome (2735665372).
The spelling of 1431244031 in words is "one billion, four hundred thirty-one million, two hundred forty-four thousand, thirty-one".
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