Base | Representation |
---|---|
bin | 10111001001100011… |
… | …11111111010011000 |
3 | 1012002010221100100121 |
4 | 23210301333322120 |
5 | 200423112343210 |
6 | 5413124243024 |
7 | 616661232223 |
oct | 134461777230 |
9 | 35063840317 |
10 | 12428246680 |
11 | 52a846a753 |
12 | 24aa240474 |
13 | 1230ab6025 |
14 | 85c8565ba |
15 | 4cb1636da |
hex | 2e4c7fe98 |
12428246680 has 32 divisors (see below), whose sum is σ = 27967433040. Its totient is φ = 4970609280.
The previous prime is 12428246671. The next prime is 12428246681. The reversal of 12428246680 is 8664282421.
It is a super-2 number, since 2×124282466802 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12428246681) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349315 + ... + 383245.
Almost surely, 212428246680 is an apocalyptic number.
12428246680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12428246680 is an abundant number, since it is smaller than the sum of its proper divisors (15539186360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12428246680 is a wasteful number, since it uses less digits than its factorization.
12428246680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43099 (or 43095 counting only the distinct ones).
The product of its (nonzero) digits is 294912, while the sum is 43.
The spelling of 12428246680 in words is "twelve billion, four hundred twenty-eight million, two hundred forty-six thousand, six hundred eighty".
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