Base | Representation |
---|---|
bin | 10110110111101011… |
… | …11100111100000010 |
3 | 1011200200202122220020 |
4 | 23123311330330002 |
5 | 200121220210010 |
6 | 5350210154310 |
7 | 613160504253 |
oct | 133365747402 |
9 | 34620678806 |
10 | 12278288130 |
11 | 5230856669 |
12 | 2467b82996 |
13 | 12089ccc64 |
14 | 84697cb2a |
15 | 4bcde1470 |
hex | 2dbd7cf02 |
12278288130 has 64 divisors (see below), whose sum is σ = 29807084160. Its totient is φ = 3236603904.
The previous prime is 12278288107. The next prime is 12278288137. The reversal of 12278288130 is 3188287221.
It is not an unprimeable number, because it can be changed into a prime (12278288137) 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, 3108817 + ... + 3112763.
It is an arithmetic number, because the mean of its divisors is an integer number (465735690).
Almost surely, 212278288130 is an apocalyptic number.
12278288130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12278288130 is an abundant number, since it is smaller than the sum of its proper divisors (17528796030).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12278288130 is a wasteful number, since it uses less digits than its factorization.
12278288130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5123.
The product of its (nonzero) digits is 86016, while the sum is 42.
Subtracting from 12278288130 its reverse (3188287221), we obtain a palindrome (9090000909).
The spelling of 12278288130 in words is "twelve billion, two hundred seventy-eight million, two hundred eighty-eight thousand, one hundred thirty".
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