Base | Representation |
---|---|
bin | 10111011000100011… |
… | …10010010100100011 |
3 | 1012101220121022002120 |
4 | 23230101302110203 |
5 | 201202312121011 |
6 | 5433420115323 |
7 | 623046260532 |
oct | 135421622443 |
9 | 35356538076 |
10 | 12554020131 |
11 | 5362465154 |
12 | 2524395b43 |
13 | 1250b81aa3 |
14 | 871436319 |
15 | 4d7209a06 |
hex | 2ec472523 |
12554020131 has 8 divisors (see below), whose sum is σ = 16760350800. Its totient is φ = 8358518112.
The previous prime is 12554020111. The next prime is 12554020139. The reversal of 12554020131 is 13102045521.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12554020131 - 29 = 12554019619 is a prime.
It is a super-2 number, since 2×125540201312 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12554020139) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2704456 + ... + 2709093.
It is an arithmetic number, because the mean of its divisors is an integer number (2095043850).
Almost surely, 212554020131 is an apocalyptic number.
12554020131 is a deficient number, since it is larger than the sum of its proper divisors (4206330669).
12554020131 is an equidigital number, since it uses as much as digits as its factorization.
12554020131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5414325.
The product of its (nonzero) digits is 1200, while the sum is 24.
Adding to 12554020131 its reverse (13102045521), we get a palindrome (25656065652).
The spelling of 12554020131 in words is "twelve billion, five hundred fifty-four million, twenty thousand, one hundred thirty-one".
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