Base | Representation |
---|---|
bin | 111110000001111… |
… | …1100010010001110 |
3 | 12101001112111012110 |
4 | 1330003330102032 |
5 | 13230320030032 |
6 | 542311444450 |
7 | 102402451212 |
oct | 17403742216 |
9 | 5331474173 |
10 | 2081408142 |
11 | 97899a820 |
12 | 4a1086726 |
13 | 2722ab668 |
14 | 15a60a942 |
15 | c2ae37cc |
hex | 7c0fc48e |
2081408142 has 32 divisors (see below), whose sum is σ = 4543056000. Its totient is φ = 630479520.
The previous prime is 2081408137. The next prime is 2081408159. The reversal of 2081408142 is 2418041802.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226428 + ... + 235440.
It is an arithmetic number, because the mean of its divisors is an integer number (141970500).
Almost surely, 22081408142 is an apocalyptic number.
2081408142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
2081408142 is an abundant number, since it is smaller than the sum of its proper divisors (2461647858).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2081408142 is a wasteful number, since it uses less digits than its factorization.
2081408142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12528.
The product of its (nonzero) digits is 4096, while the sum is 30.
The square root of 2081408142 is about 45622.4521699568. The cubic root of 2081408142 is about 1276.7888548035.
Adding to 2081408142 its reverse (2418041802), we get a palindrome (4499449944).
The spelling of 2081408142 in words is "two billion, eighty-one million, four hundred eight thousand, one hundred forty-two".
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