17981 (number)

17981 is an odd 5-digits prime number following 17980 and preceding 17982. In scientific notation, it is written as 1.7981 × 10^4. The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors. There are 17980 positive integers (up to 17981) that are relatively prime to 17981.

Interesting facts

Basic properties

Name

Name seventeen thousand nine hundred eighty-one

Notation

Scientific notation 1.7981 × 10^4
Engineering notation 1.7981 × 10^3

Prime Factorization of 17981

Prime Factorization 17981

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 17981
Product of the distinct prime numbers

The prime factorization of 17981 is 17981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

10, 7, 53, 30, 304, 600, 927, 1374, 34686, 44971, 574960, 337978, 5755018, 7113009, 84790636, 13895104, 200240228, 519979564, 2331621613, 5979109326

Basic calculations (n = 17981)

Multiplication

n×y
n×2 35962
n×3 53943
n×4 71924
n×5 89905

Division

n÷y
n÷2 8990.5
n÷3 5993.6666666667
n÷3 4495.25
n÷5 3596.2

Exponentiation

ny
n2 323316361
n3 5813551487141
n4 104533469290282321
n5 1.8796163113086E+21

Nth Root

y√n
2√n 134.09325113517
3√n 26.198189568587
4√n 11.579864037853
5√n 7.0951693891469

Divisors of 17981

1, 17981

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 17982
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 8991
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 134.09697983176
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9998887776666
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 17981 can be divided by 2 positive divisors. The sum of these divisors (counting 17981) is 17982, the average is 8991.

Base conversion 17981

Base System Value
2 Binary 100011000111101
3 Ternary 220122222
4 Quaternary 10120331
5 Quinary 1033411
6 Senary 215125
8 Octal 43075
10 Decimal 17981
12 Duodecimal a4a5
16 Hexadecimal 463d
20 Vigesimal 24j1
36 Base36 dvh

Cryptographic Hash Functions

md5 6878fea7a98cb41194729e55ee5cea46
sha1 0c6c7f2b1b7e4da539623a8f0fb7012e2ea468d5
sha256 bc62c7cd2cb19dae74f15b14964b6eb3942104662a21d5ba91eac861ea67bbe2
sha512 cd45971f2646a7fc29262659245a1da2b5fed56ff38b60c6820f36eade7a6b57588ff82472e1eff92e02b33199a4c6af96e65b69fd9b51eaaa4172bbaa5f1874
ripemd-160 4a5c7e15a3190b4d257f31bb72137180e05fefa8

17981 as geometric shapes

Circle

Radius = n
Diameter 35962
Circumference 112977.9550084
Area 1015728304.503

Sphere

Radius = n
Volume 24351747524358
Surface area 4062913218.0119
Circumference 112977.9550084

Square

Length = n
Perimeter 71924
Area 323316361
Diagonal 25428.974065031

Cube

Length = n
Surface area 1939898166
Volume 5813551487141
Space diagonal 31144.005570896

Equilateral Triangle

Length = n
Perimeter 53943
Area 140000091.04257
Altitude 15572.002785448

Triangular Pyramid

Length = n
Surface area 140000091.04257
Volume 685133613222.42
Height 8476.3246883435