Base | Representation |
---|---|
bin | 1011111011111011001111… |
… | …0010011011011010010101 |
3 | 1201110122200222111121021211 |
4 | 2332332303302123122111 |
5 | 3210011220201233141 |
6 | 43525051454141421 |
7 | 2523121313346100 |
oct | 276766362333225 |
9 | 51418628447254 |
10 | 13124141430421 |
11 | 41aaa0a76788a |
12 | 157b6684b1871 |
13 | 7427a7b82618 |
14 | 3352d73b9737 |
15 | 17b5c7eecd81 |
hex | befb3c9b695 |
13124141430421 has 48 divisors (see below), whose sum is σ = 15936925141440. Its totient is φ = 10762632706560.
The previous prime is 13124141430383. The next prime is 13124141430437. The reversal of 13124141430421 is 12403414142131.
It is not a de Polignac number, because 13124141430421 - 219 = 13124140906133 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13124141430451) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 942074826 + ... + 942088756.
It is an arithmetic number, because the mean of its divisors is an integer number (332019273780).
Almost surely, 213124141430421 is an apocalyptic number.
It is an amenable number.
13124141430421 is a deficient number, since it is larger than the sum of its proper divisors (2812783711019).
13124141430421 is a wasteful number, since it uses less digits than its factorization.
13124141430421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19954 (or 19947 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 31.
Adding to 13124141430421 its reverse (12403414142131), we get a palindrome (25527555572552).
The spelling of 13124141430421 in words is "thirteen trillion, one hundred twenty-four billion, one hundred forty-one million, four hundred thirty thousand, four hundred twenty-one".
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