Base | Representation |
---|---|
bin | 10111010100100011… |
… | …10000111101101111 |
3 | 1012022120110021110001 |
4 | 23222101300331233 |
5 | 201120214211033 |
6 | 5430220525131 |
7 | 622161104152 |
oct | 135221607557 |
9 | 35276407401 |
10 | 12520460143 |
11 | 5345523024 |
12 | 25150b07a7 |
13 | 1246c315c9 |
14 | 86abbbc99 |
15 | 4d42cae7d |
hex | 2ea470f6f |
12520460143 has 4 divisors (see below), whose sum is σ = 12786852960. Its totient is φ = 12254067328.
The previous prime is 12520460137. The next prime is 12520460171. The reversal of 12520460143 is 34106402521.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 12520460143 - 229 = 11983589231 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 (12520463143) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133196338 + ... + 133196431.
It is an arithmetic number, because the mean of its divisors is an integer number (3196713240).
Almost surely, 212520460143 is an apocalyptic number.
12520460143 is a deficient number, since it is larger than the sum of its proper divisors (266392817).
12520460143 is an equidigital number, since it uses as much as digits as its factorization.
12520460143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 266392816.
The product of its (nonzero) digits is 5760, while the sum is 28.
Adding to 12520460143 its reverse (34106402521), we get a palindrome (46626862664).
The spelling of 12520460143 in words is "twelve billion, five hundred twenty million, four hundred sixty thousand, one hundred forty-three".
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