Base | Representation |
---|---|
bin | 10110100110010011… |
… | …00000100110100101 |
3 | 1011022112021210110002 |
4 | 23103021200212211 |
5 | 144321344420010 |
6 | 5323515511045 |
7 | 606436603616 |
oct | 132311404645 |
9 | 34275253402 |
10 | 12132420005 |
11 | 51664867a2 |
12 | 2427158485 |
13 | 11b4719964 |
14 | 83144bc0d |
15 | 4b01cb1a5 |
hex | 2d32609a5 |
12132420005 has 64 divisors (see below), whose sum is σ = 16154546688. Its totient is φ = 8710840320.
The previous prime is 12132419987. The next prime is 12132420007. The reversal of 12132420005 is 50002423121.
It is not a de Polignac number, because 12132420005 - 26 = 12132419941 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 (12132420007) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26547737 + ... + 26548193.
It is an arithmetic number, because the mean of its divisors is an integer number (252414792).
Almost surely, 212132420005 is an apocalyptic number.
It is an amenable number.
12132420005 is a deficient number, since it is larger than the sum of its proper divisors (4022126683).
12132420005 is a wasteful number, since it uses less digits than its factorization.
12132420005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 686.
The product of its (nonzero) digits is 480, while the sum is 20.
Adding to 12132420005 its reverse (50002423121), we get a palindrome (62134843126).
The spelling of 12132420005 in words is "twelve billion, one hundred thirty-two million, four hundred twenty thousand, five".
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