Base | Representation |
---|---|
bin | 10111001010111111… |
… | …01101110100101010 |
3 | 1012002222111020001002 |
4 | 23211133231310222 |
5 | 200434144344320 |
6 | 5414233155002 |
7 | 620165135441 |
oct | 134537556452 |
9 | 35088436032 |
10 | 12440231210 |
11 | 5304205920 |
12 | 24b225ba62 |
13 | 1233420c74 |
14 | 860295d58 |
15 | 4cc22e675 |
hex | 2e57edd2a |
12440231210 has 64 divisors (see below), whose sum is σ = 25323943680. Its totient is φ = 4358484480.
The previous prime is 12440231203. The next prime is 12440231227. The reversal of 12440231210 is 1213204421.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1600694 + ... + 1608446.
It is an arithmetic number, because the mean of its divisors is an integer number (395686620).
Almost surely, 212440231210 is an apocalyptic number.
12440231210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12440231210 is an abundant number, since it is smaller than the sum of its proper divisors (12883712470).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12440231210 is a wasteful number, since it uses less digits than its factorization.
12440231210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8303.
The product of its (nonzero) digits is 384, while the sum is 20.
Adding to 12440231210 its reverse (1213204421), we get a palindrome (13653435631).
The spelling of 12440231210 in words is "twelve billion, four hundred forty million, two hundred thirty-one thousand, two hundred ten".
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