Base | Representation |
---|---|
bin | 10111001001111001… |
… | …01000010001010110 |
3 | 1012002100011221001120 |
4 | 23210330220101112 |
5 | 200424321032210 |
6 | 5413304104410 |
7 | 620024016654 |
oct | 134474502126 |
9 | 35070157046 |
10 | 12431033430 |
11 | 52a9aa3452 |
12 | 24ab165106 |
13 | 12315505aa |
14 | 85cd7ddd4 |
15 | 4cb514270 |
hex | 2e4f28456 |
12431033430 has 32 divisors (see below), whose sum is σ = 29869517664. Its totient is φ = 3311049216.
The previous prime is 12431033411. The next prime is 12431033441. The reversal of 12431033430 is 3433013421.
It is a self number, because there is not a number n which added to its sum of digits gives 12431033430.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217299 + ... + 268478.
It is an arithmetic number, because the mean of its divisors is an integer number (933422427).
Almost surely, 212431033430 is an apocalyptic number.
12431033430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12431033430 is an abundant number, since it is smaller than the sum of its proper divisors (17438484234).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12431033430 is a wasteful number, since it uses less digits than its factorization.
12431033430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 486640.
The product of its (nonzero) digits is 2592, while the sum is 24.
Adding to 12431033430 its reverse (3433013421), we get a palindrome (15864046851).
The spelling of 12431033430 in words is "twelve billion, four hundred thirty-one million, thirty-three thousand, four hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •