16981 (number)

16981 is an odd 5-digits prime number following 16980 and preceding 16982. In scientific notation, it is written as 1.6981 × 10^4. The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors. There are 16980 positive integers (up to 16981) that are relatively prime to 16981.

Interesting facts

Basic properties

Name

Name sixteen thousand nine hundred eighty-one

Notation

Scientific notation 1.6981 × 10^4
Engineering notation 1.6981 × 10^3

Prime Factorization of 16981

Prime Factorization 16981

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 16981
Product of the distinct prime numbers

The prime factorization of 16981 is 16981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

6, 2, 19, 11, 117, 236, 4752, 5989, 84808, 82286, 458683, 186853, 2540857, 4110064, 18151050, 6974344, 389500660, 742156690, 5606540137, 6728558489

Basic calculations (n = 16981)

Multiplication

n×y
n×2 33962
n×3 50943
n×4 67924
n×5 84905

Division

n÷y
n÷2 8490.5
n÷3 5660.3333333333
n÷3 4245.25
n÷5 3396.2

Exponentiation

ny
n2 288354361
n3 4896545404141
n4 83148237507718321
n5 1.4119402211186E+21

Nth Root

y√n
2√n 130.31116606032
3√n 25.703233051254
4√n 11.415391629739
5√n 7.0144343096033

Divisors of 16981

1, 16981

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 16982
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 8491
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 130.31500297356
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9998822282417
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 16981 can be divided by 2 positive divisors. The sum of these divisors (counting 16981) is 16982, the average is 8491.

Base conversion 16981

Base System Value
2 Binary 100001001010101
3 Ternary 212021221
4 Quaternary 10021111
5 Quinary 1020411
6 Senary 210341
8 Octal 41125
10 Decimal 16981
12 Duodecimal 99b1
16 Hexadecimal 4255
20 Vigesimal 2291
36 Base36 d3p

Cryptographic Hash Functions

md5 f731c0fdac805dc4a033c53cb9a89646
sha1 1c3d69bee51ed8e6114777e15eada90943df1621
sha256 a1437f4d7c5982c950cc3bb1cfab162aa1470eb7263b45d865b404015088558b
sha512 d38be24658458487d9fc5489e99e5823a1afeb0267eb9bcfc3f375a22b6509d57ed45baf8515c8bc7899a8c1d190474082c71044b0741d2997dfc9f65800b8cf
ripemd-160 690390df07d6b991cff27d67d8552e85663cd1da

16981 as geometric shapes

Circle

Radius = n
Diameter 33962
Circumference 106694.76970122
Area 905891942.14818

Sphere

Radius = n
Volume 20510601426158
Surface area 3623567768.5927
Circumference 106694.76970122

Square

Length = n
Perimeter 67924
Area 288354361
Diagonal 24014.760502658

Cube

Length = n
Surface area 1730126166
Volume 4896545404141
Space diagonal 29411.954763327

Equilateral Triangle

Length = n
Perimeter 50943
Area 124861100.95901
Altitude 14705.977381664

Triangular Pyramid

Length = n
Surface area 124861100.95901
Volume 577063409942.65
Height 8004.9201675525