Base | Representation |
---|---|
bin | 10000110101110101… |
… | …101111100111000010 |
3 | 1201200020122012202110 |
4 | 100311311233213002 |
5 | 244013241302044 |
6 | 12150212400150 |
7 | 1210055145510 |
oct | 206565574702 |
9 | 51606565673 |
10 | 18083150274 |
11 | 773a5154a2 |
12 | 3608016056 |
13 | 1922524827 |
14 | c378b34b0 |
15 | 70c8306b9 |
hex | 435d6f9c2 |
18083150274 has 128 divisors (see below), whose sum is σ = 45498931200. Its totient is φ = 4671636480.
The previous prime is 18083150243. The next prime is 18083150329. The reversal of 18083150274 is 47205138081.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4366897 + ... + 4371035.
It is an arithmetic number, because the mean of its divisors is an integer number (355460400).
Almost surely, 218083150274 is an apocalyptic number.
18083150274 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 18083150274, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22749465600).
18083150274 is an abundant number, since it is smaller than the sum of its proper divisors (27415780926).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18083150274 is a wasteful number, since it uses less digits than its factorization.
18083150274 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4408.
The product of its (nonzero) digits is 53760, while the sum is 39.
The spelling of 18083150274 in words is "eighteen billion, eighty-three million, one hundred fifty thousand, two hundred seventy-four".
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