81551982 (number)

81551982 is an even 8-digits composite number following 81551981 and preceding 81551983. In scientific notation, it is written as 8.1551982 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 24 positive divisors. There are 26842864 positive integers (up to 81551982) that are relatively prime to 81551982.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred fifty-one thousand nine hundred eighty-two

Notation

Scientific notation 8.1551982 × 10^7
Engineering notation 8.1551982 × 10^6

Prime Factorization of 81551982

Prime Factorization 2 × 3 × 83 × 83 × 1973

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 982554
Product of the distinct prime numbers

The prime factorization of 81551982 is 2 × 3 × 83 × 83 × 1973. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 4, 77, 86, 594, 376, 9349, 291, 44103, 86732, 370271, 62728, 8415177, 5376615, 59803045, 8464116, 945154514, 6097035, 5430110808, 7943068673

Basic calculations (n = 81551982)

Multiplication

n×y
n×2 163103964
n×3 244655946
n×4 326207928
n×5 407759910

Division

n÷y
n÷2 40775991
n÷3 27183994
n÷3 20387995.5
n÷5 16310396.4

Exponentiation

ny
n2 6650725768128324
n3 5.4237986812934E+23
n4 4.4232153242846E+31
n5 3.6072197650818E+39

Nth Root

y√n
2√n 9030.613600415
3√n 433.6554812915
4√n 95.02954067244
5√n 38.219667462858

Divisors of 81551982

1, 2, 3, 6, 83, 166, 249, 498, 1973, 3946, 5919, 6889, 11838, 13778, 20667, 41334, 163759, 327518, 491277, 982554, 13591997, 27183994, 40775991, 81551982

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 -81551981
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 81551982 can be divided by 24 positive divisors. The sum of these divisors (counting 81551982) is 1, the average is 0.041666666666667.

Base conversion 81551982

Base System Value
2 Binary 100110111000110001001101110
3 Ternary 12200110021021210
4 Quaternary 10313012021232
5 Quinary 131334130412
6 Senary 12031535250
8 Octal 467061156
10 Decimal 81551982
12 Duodecimal 2338a526
16 Hexadecimal 4dc626e
20 Vigesimal 159djj2
36 Base36 1cjxwu

Cryptographic Hash Functions

md5 2db15aed921788f8db8dedabef5d82cf
sha1 da3eecd557fe9d95c074bd3dd10e600292dd75b1
sha256 8e469803e5d34de5b30d33786498ed5d86a1665471e3e11ac1c01cd8b458af79
sha512 6c75d7183301749a212ab3276e787aa65003d8af4ee71125213ee0490c767b6157820af91dc60806ba1f2037e84bcac7709e898d1cbe8957459ca6d4b71cc405
ripemd-160 5863e422f48b22b2383f7b4ffd137a24c2c86a4f

81551982 as geometric shapes

Circle

Radius = n
Diameter 163103964
Circumference 512406215.07377
Area 2.0893871214192E+16

Sphere

Radius = n
Volume 2.2719154788935E+24
Surface area 8.3575484856769E+16
Circumference 512406215.07377

Square

Length = n
Perimeter 326207928
Area 6650725768128324
Diagonal 115331918.98281

Cube

Length = n
Surface area 39904354608769944
Volume 5.4237986812934E+23
Space diagonal 141252176.28194

Equilateral Triangle

Length = n
Perimeter 244655946
Area 2.8798487344015E+15
Altitude 70626088.140971

Triangular Pyramid

Length = n
Surface area 2.8798487344015E+15
Volume 6.3920080455553E+22
Height 38443972.994269