Base | Representation |
---|---|
bin | 110101101110… |
… | …001110100101 |
3 | 222111111012220 |
4 | 311232032211 |
5 | 12101123411 |
6 | 1221502553 |
7 | 230463153 |
oct | 65561645 |
9 | 28444186 |
10 | 14082981 |
11 | 7a49830 |
12 | 4871a59 |
13 | 2bc1133 |
14 | 1c283d3 |
15 | 1382b06 |
hex | d6e3a5 |
14082981 has 8 divisors (see below), whose sum is σ = 20484384. Its totient is φ = 8535120.
The previous prime is 14082979. The next prime is 14082997. The reversal of 14082981 is 18928041.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 14082981 - 21 = 14082979 is a prime.
It is a super-2 number, since 2×140829812 = 396660707692722, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 426757 = 14082981 / (1 + 4 + 0 + 8 + 2 + 9 + 8 + 1).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (14082911) 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, 213346 + ... + 213411.
It is an arithmetic number, because the mean of its divisors is an integer number (2560548).
Almost surely, 214082981 is an apocalyptic number.
14082981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
14082981 is a deficient number, since it is larger than the sum of its proper divisors (6401403).
14082981 is a wasteful number, since it uses less digits than its factorization.
14082981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 426771.
The product of its (nonzero) digits is 4608, while the sum is 33.
The square root of 14082981 is about 3752.7298064209. The cubic root of 14082981 is about 241.4894696830.
The spelling of 14082981 in words is "fourteen million, eighty-two thousand, nine hundred eighty-one".
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