Base | Representation |
---|---|
bin | 10110100110010011… |
… | …00011000011000100 |
3 | 1011022112022022012000 |
4 | 23103021203003010 |
5 | 144321400230040 |
6 | 5323520025300 |
7 | 606436645044 |
oct | 132311430304 |
9 | 34275268160 |
10 | 12132430020 |
11 | 5166493277 |
12 | 2427162230 |
13 | 11b4721399 |
14 | 831451724 |
15 | 4b01ce130 |
hex | 2d32630c4 |
12132430020 has 96 divisors (see below), whose sum is σ = 37762771200. Its totient is φ = 3233820672.
The previous prime is 12132430003. The next prime is 12132430027. The reversal of 12132430020 is 2003423121.
12132430020 is a `hidden beast` number, since 1 + 21 + 324 + 300 + 20 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 12132429975 and 12132430002.
It is not an unprimeable number, because it can be changed into a prime (12132430027) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1659012 + ... + 1666308.
It is an arithmetic number, because the mean of its divisors is an integer number (393362200).
Almost surely, 212132430020 is an apocalyptic number.
12132430020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12132430020 is an abundant number, since it is smaller than the sum of its proper divisors (25630341180).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12132430020 is a wasteful number, since it uses less digits than its factorization.
12132430020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10394 (or 10386 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 12132430020 its reverse (2003423121), we get a palindrome (14135853141).
The spelling of 12132430020 in words is "twelve billion, one hundred thirty-two million, four hundred thirty thousand, twenty".
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