Base | Representation |
---|---|
bin | 10110010110101010… |
… | …11100001111010011 |
3 | 1010222101121201221120 |
4 | 23023111130033103 |
5 | 144034320031011 |
6 | 5302514053323 |
7 | 603255423450 |
oct | 131325341723 |
9 | 33871551846 |
10 | 12001330131 |
11 | 50a948aa5a |
12 | 23ab27a243 |
13 | 119350c09b |
14 | 81bc86827 |
15 | 4a3934a06 |
hex | 2cb55c3d3 |
12001330131 has 16 divisors (see below), whose sum is σ = 18289728000. Its totient is φ = 6857157888.
The previous prime is 12001330091. The next prime is 12001330139. The reversal of 12001330131 is 13103310021.
It is not a de Polignac number, because 12001330131 - 26 = 12001330067 is a prime.
It is a super-2 number, since 2×120013301312 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 12001330131.
It is not an unprimeable number, because it can be changed into a prime (12001330139) 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 15 ways as a sum of consecutive naturals, for example, 210595 + ... + 261443.
It is an arithmetic number, because the mean of its divisors is an integer number (1143108000).
Almost surely, 212001330131 is an apocalyptic number.
12001330131 is a deficient number, since it is larger than the sum of its proper divisors (6288397869).
12001330131 is a wasteful number, since it uses less digits than its factorization.
12001330131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 62098.
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 12001330131 its reverse (13103310021), we get a palindrome (25104640152).
It can be divided in two parts, 1200 and 1330131, that added together give a palindrome (1331331).
The spelling of 12001330131 in words is "twelve billion, one million, three hundred thirty thousand, one hundred thirty-one".
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