Base | Representation |
---|---|
bin | 10111010100100001… |
… | …00001000110001111 |
3 | 1012022112211122200220 |
4 | 23222100201012033 |
5 | 201120123224012 |
6 | 5430205522423 |
7 | 622155242334 |
oct | 135220410617 |
9 | 35275748626 |
10 | 12520133007 |
11 | 534531a268 |
12 | 2514b73413 |
13 | 1246b48735 |
14 | 86ab3498b |
15 | 4d426408c |
hex | 2ea42118f |
12520133007 has 16 divisors (see below), whose sum is σ = 17443345920. Its totient is φ = 7972839072.
The previous prime is 12520132993. The next prime is 12520133009. The reversal of 12520133007 is 70033102521.
It is not a de Polignac number, because 12520133007 - 26 = 12520132943 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12520133009) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74632 + ... + 174957.
It is an arithmetic number, because the mean of its divisors is an integer number (1090209120).
Almost surely, 212520133007 is an apocalyptic number.
12520133007 is a deficient number, since it is larger than the sum of its proper divisors (4923212913).
12520133007 is a wasteful number, since it uses less digits than its factorization.
12520133007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 250342.
The product of its (nonzero) digits is 1260, while the sum is 24.
Adding to 12520133007 its reverse (70033102521), we get a palindrome (82553235528).
The spelling of 12520133007 in words is "twelve billion, five hundred twenty million, one hundred thirty-three thousand, seven".
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