81609982 (number)

81609982 is an even 8-digits composite number following 81609981 and preceding 81609983. In scientific notation, it is written as 8.1609982 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 40271392 positive integers (up to 81609982) that are relatively prime to 81609982.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred nine thousand nine hundred eighty-two

Notation

Scientific notation 8.1609982 × 10^7
Engineering notation 8.1609982 × 10^6

Prime Factorization of 81609982

Prime Factorization 2 × 149 × 173 × 1583

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81609982
Product of the distinct prime numbers

The prime factorization of 81609982 is 2 × 149 × 173 × 1583. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 7, 29, 64, 250, 800, 2743, 9374, 23367, 72265, 247862, 562778, 8181026, 7238647, 57652145, 37469173, 455083550, 713803069, 428131834, 4758869596

Basic calculations (n = 81609982)

Multiplication

n×y
n×2 163219964
n×3 244829946
n×4 326439928
n×5 408049910

Division

n÷y
n÷2 40804991
n÷3 27203327.333333
n÷3 20402495.5
n÷5 16321996.4

Exponentiation

ny
n2 6660189162040324
n3 5.4353791763071E+23
n4 4.4358119674159E+31
n5 3.620065348162E+39

Nth Root

y√n
2√n 9033.8243285997
3√n 433.75826259705
4√n 95.046432487494
5√n 38.225102304063

Divisors of 81609982

1, 2, 149, 173, 298, 346, 1583, 3166, 25777, 51554, 235867, 273859, 471734, 547718, 40804991, 81609982

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81609981
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81609982 can be divided by 16 positive divisors. The sum of these divisors (counting 81609982) is 1, the average is 0.0625.

Base conversion 81609982

Base System Value
2 Binary 100110111010100010011111110
3 Ternary 12200120012211221
4 Quaternary 10313110103332
5 Quinary 131343004412
6 Senary 12033103554
8 Octal 467242376
10 Decimal 81609982
12 Duodecimal 233b7bba
16 Hexadecimal 4dd44fe
20 Vigesimal 15a14j2
36 Base36 1cl6ny

Cryptographic Hash Functions

md5 95a3cf282064ccb1c2b93eece0bafa2d
sha1 27332d26c83daf69665e2248bb97c6b462599c0b
sha256 3a27e4cda233690ecc4af44f8ec0e7111755590d73045f6f9c360e54f2a2a0b5
sha512 c0d8e882756882c77ac274958a04794279a3ccb1b205fbd81884283ea5ff84b1dff570f82f701b529fd6aef0b657345badb9563d656101d29cf1f6df6fd30539
ripemd-160 a13a7b3c6975f30b042998de1e53a1c9ee4cfbcf

81609982 as geometric shapes

Circle

Radius = n
Diameter 163219964
Circumference 512770639.82159
Area 2.0923601342984E+16

Sphere

Radius = n
Volume 2.2767663053015E+24
Surface area 8.3694405371937E+16
Circumference 512770639.82159

Square

Length = n
Perimeter 326439928
Area 6660189162040324
Diagonal 115413943.36942

Cube

Length = n
Surface area 39961134972241944
Volume 5.4353791763071E+23
Space diagonal 141352635.22878

Equilateral Triangle

Length = n
Perimeter 244829946
Area 2.8839465041684E+15
Altitude 70676317.614391

Triangular Pyramid

Length = n
Surface area 2.8839465041684E+15
Volume 6.4056557898115E+22
Height 38471314.456475