20160981 (number)

20160981 is an odd 8-digits composite number following 20160980 and preceding 20160982. In scientific notation, it is written as 2.0160981 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 13331952 positive integers (up to 20160981) that are relatively prime to 20160981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0160981 × 10^7
Engineering notation 2.0160981 × 10^6

Prime Factorization of 20160981

Prime Factorization 3 × 9 × 9 × 163 × 509

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2240109
Product of the distinct prime numbers

The prime factorization of 20160981 is 3 × 9 × 9 × 163 × 509. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 6, 49, 72, 581, 66, 3529, 6656, 77457, 36988, 608182, 787781, 3080666, 8725240, 50364033, 31949702, 258463408, 310952192, 8545215414, 7376208601

Basic calculations (n = 20160981)

Multiplication

n×y
n×2 40321962
n×3 60482943
n×4 80643924
n×5 100804905

Division

n÷y
n÷2 10080490.5
n÷3 6720327
n÷3 5040245.25
n÷5 4032196.2

Exponentiation

ny
n2 406465154882361
n3 8.1947362647453E+21
n4 1.6521392213354E+29
n5 3.3308747450698E+36

Nth Root

y√n
2√n 4490.0981058324
3√n 272.1680991263
4√n 67.008194318549
5√n 28.900298741456

Divisors of 20160981

1, 3, 9, 27, 81, 163, 243, 489, 509, 1467, 1527, 4401, 4581, 13203, 13743, 39609, 41229, 82967, 123687, 248901, 746703, 2240109, 6720327, 20160981

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 -20160980
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 20160981 can be divided by 24 positive divisors. The sum of these divisors (counting 20160981) is 1, the average is 0.041666666666667.

Base conversion 20160981

Base System Value
2 Binary 1001100111010000111010101
3 Ternary 1101221021200000
4 Quaternary 1030322013111
5 Quinary 20130122411
6 Senary 2000041513
8 Octal 114720725
10 Decimal 20160981
12 Duodecimal 6903299
16 Hexadecimal 133a1d5
20 Vigesimal 660291
36 Base36 c04b9

Cryptographic Hash Functions

md5 e2dde0f9fdc70412ce1098f2e7906c31
sha1 821826f7dd7cbcc9c5cf14c901d494f0eaea0d8a
sha256 4d8c7c3845789406f2672794f7e9872e942a00b6a7bc4caa1fbe8ed35bb95dde
sha512 eee2b3a552305fbae9be4fb8a5a90e4be23a1fee047659b9a7fcc8f8c657f203d5afdab937140e99695c93641cad9403caf66e5231e87a563cb87614ea0a83c5
ripemd-160 2f2f275384e2d948226135ff250f21e429c4c23f

20160981 as geometric shapes

Circle

Radius = n
Diameter 40321962
Circumference 126675179.59753
Area 1.2769479445187E+15

Sphere

Radius = n
Volume 3.4326030996573E+22
Surface area 5.1077917780747E+15
Circumference 126675179.59753

Square

Length = n
Perimeter 80643924
Area 406465154882361
Diagonal 28511932.760946

Cube

Length = n
Surface area 2438790929294166
Volume 8.1947362647453E+21
Space diagonal 34919843.422431

Equilateral Triangle

Length = n
Perimeter 60482943
Area 1.7600457494065E+14
Altitude 17459921.711215

Triangular Pyramid

Length = n
Surface area 1.7600457494065E+14
Volume 9.6575893047279E+20
Height 9503977.5869821