81069969 (number)

81069969 is an odd 8-digits composite number following 81069968 and preceding 81069970. In scientific notation, it is written as 8.1069969 × 10^7. The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors. There are 54046644 positive integers (up to 81069969) that are relatively prime to 81069969.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1069969 × 10^7
Engineering notation 8.1069969 × 10^6

Prime Factorization of 81069969

Prime Factorization 3 × 27023323

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81069969
Product of the distinct prime numbers

The prime factorization of 81069969 is 3 × 27023323. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81069969)

Multiplication

n×y
n×2 162139938
n×3 243209907
n×4 324279876
n×5 405349845

Division

n÷y
n÷2 40534984.5
n÷3 27023323
n÷3 20267492.25
n÷5 16213993.8

Exponentiation

ny
n2 6572339873660961
n3 5.3281938981516E+23
n4 4.3195651414914E+31
n5 3.5018701211419E+39

Nth Root

y√n
2√n 9003.886327581
3√n 432.79941889157
4√n 94.88881033916
5√n 38.174380799305

Divisors of 81069969

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81069968
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81069969 can be divided by 4 positive divisors. The sum of these divisors (counting 81069969) is 1, the average is 0.25.

Base conversion 81069969

Base System Value
2 Binary 100110101010000011110010001
3 Ternary 12122112210002110
4 Quaternary 10311100132101
5 Quinary 131223214334
6 Senary 12013335533
8 Octal 465203621
10 Decimal 81069969
12 Duodecimal 231975a9
16 Hexadecimal 4d50791
20 Vigesimal 156dei9
36 Base36 1c9lzl

Cryptographic Hash Functions

md5 4895708c861a8c7016d2b33e034108fe
sha1 20144178582db4a08ebd4525ef3b3f5fef074167
sha256 0074eee4c510b33dd303d04a46edf5fbc09d0b2bb63045be19f7287ed0bf658c
sha512 359699ddfc4135b82e7ddc3c6e3e352a20261985330cd1c97a8aad41c1b63d762c0ac2c5bac1058dfb86c1b045ef2fe03d2b62c3ecb7720df5488abac1e218ae
ripemd-160 8e4531f39ca0048b8ecc8b1deaac2202115b47ea

81069969 as geometric shapes

Circle

Radius = n
Diameter 162139938
Circumference 509377638.0743
Area 2.0647614663989E+16

Sphere

Radius = n
Volume 2.231868640978E+24
Surface area 8.2590458655954E+16
Circumference 509377638.0743

Square

Length = n
Perimeter 324279876
Area 6572339873660961
Diagonal 114650249.66097

Cube

Length = n
Surface area 39434039241965766
Volume 5.3281938981516E+23
Space diagonal 140417305.27603

Equilateral Triangle

Length = n
Perimeter 243209907
Area 2.8459066464479E+15
Altitude 70208652.638017

Triangular Pyramid

Length = n
Surface area 2.8459066464479E+15
Volume 6.2793367280996E+22
Height 38216749.886989