20169981 (number)

20169981 is an odd 8-digits composite number following 20169980 and preceding 20169982. In scientific notation, it is written as 2.0169981 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 12190464 positive integers (up to 20169981) that are relatively prime to 20169981.

Interesting facts

Basic properties

Name

Name twenty million one hundred sixty-nine thousand nine hundred eighty-one

Notation

Scientific notation 2.0169981 × 10^7
Engineering notation 2.0169981 × 10^6

Prime Factorization of 20169981

Prime Factorization 9 × 13 × 13 × 89 × 149

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1551537
Product of the distinct prime numbers

The prime factorization of 20169981 is 9 × 13 × 13 × 89 × 149. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 3, 63, 78, 746, 661, 8971, 3695, 4814, 47171, 948973, 946134, 9563901, 3628284, 31660659, 8346853, 235311728, 890620709, 3793858287, 4688518155

Basic calculations (n = 20169981)

Multiplication

n×y
n×2 40339962
n×3 60509943
n×4 80679924
n×5 100849905

Division

n÷y
n÷2 10084990.5
n÷3 6723327
n÷3 5042495.25
n÷5 4033996.2

Exponentiation

ny
n2 406828133540361
n3 8.2057157237745E+21
n4 1.6550913023993E+29
n5 3.338316012266E+36

Nth Root

y√n
2√n 4491.100199283
3√n 272.20859233592
4√n 67.01567129622
5√n 28.902878539101

Divisors of 20169981

1, 9, 13, 89, 117, 149, 169, 801, 1157, 1341, 1521, 1937, 10413, 13261, 15041, 17433, 25181, 119349, 135369, 172393, 226629, 1551537, 2241109, 20169981

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20169980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 1
Returns the nth root of the product of n divisors
H Harmonic Mean 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20169981 can be divided by 24 positive divisors. The sum of these divisors (counting 20169981) is 1, the average is 0.041666666666667.

Base conversion 20169981

Base System Value
2 Binary 1001100111100010011111101
3 Ternary 1101221202000100
4 Quaternary 1030330103331
5 Quinary 20130414411
6 Senary 2000151313
8 Octal 114742375
10 Decimal 20169981
12 Duodecimal 6908539
16 Hexadecimal 133c4fd
20 Vigesimal 6614j1
36 Base36 c0b99

Cryptographic Hash Functions

md5 b4fdfe7b3d6eb70d5af3aa98a69ff9d2
sha1 204398f23e2d7ab248f2314c9735b0115c66336c
sha256 e0cea78e621f2e44ae3cbcc20ecc16deb48eefd0251c436d9a2956f323f70252
sha512 f6976102c88e49635731ec87b9a80e6783ee7d5fc48a98c439185117332aab68eefeb4561a7998298acea3b4d58bbcc6b664eb860ed43506dcb6e1221fd0a64f
ripemd-160 fc4e7f34daf96983f5080c7df84fd6d3818a7b46

20169981 as geometric shapes

Circle

Radius = n
Diameter 40339962
Circumference 126731728.26529
Area 1.278088275604E+15

Sphere

Radius = n
Volume 3.4372021647008E+22
Surface area 5.1123531024162E+15
Circumference 126731728.26529

Square

Length = n
Perimeter 80679924
Area 406828133540361
Diagonal 28524660.683008

Cube

Length = n
Surface area 2440968801242166
Volume 8.2057157237745E+21
Space diagonal 34935431.879699

Equilateral Triangle

Length = n
Perimeter 60509943
Area 1.7616174931008E+14
Altitude 17467715.939849

Triangular Pyramid

Length = n
Surface area 1.7616174931008E+14
Volume 9.6705287212834E+20
Height 9508220.2276692