81129097 (number)

81129097 is an odd 8-digits composite number following 81129096 and preceding 81129098. In scientific notation, it is written as 8.1129097 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 67217040 positive integers (up to 81129097) that are relatively prime to 81129097.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-nine thousand ninety-seven

Notation

Scientific notation 8.1129097 × 10^7
Engineering notation 8.1129097 × 10^6

Prime Factorization of 81129097

Prime Factorization 7 × 3901 × 2971

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81129097
Product of the distinct prime numbers

The prime factorization of 81129097 is 7 × 3901 × 2971. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81129097)

Multiplication

n×y
n×2 162258194
n×3 243387291
n×4 324516388
n×5 405645485

Division

n÷y
n÷2 40564548.5
n÷3 27043032.333333
n÷3 20282274.25
n÷5 16225819.4

Exponentiation

ny
n2 6581930380035409
n3 5.3398606824914E+23
n4 4.3321807527633E+31
n5 3.5146591251247E+39

Nth Root

y√n
2√n 9007.1692001427
3√n 432.90461339382
4√n 94.906107285795
5√n 38.179947636445

Divisors of 81129097

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81129096
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81129097 can be divided by 8 positive divisors. The sum of these divisors (counting 81129097) is 1, the average is 0.125.

Base conversion 81129097

Base System Value
2 Binary 100110101011110111010001001
3 Ternary 12122122210012101
4 Quaternary 10311132322021
5 Quinary 131232112342
6 Senary 12014513401
8 Octal 465367211
10 Decimal 81129097
12 Duodecimal 23205861
16 Hexadecimal 4d5ee89
20 Vigesimal 15712eh
36 Base36 1cavm1

Cryptographic Hash Functions

md5 df3da9fc8366b79a341e4fa8bffe5019
sha1 9d8471c28e8167c4eab912c17906b899df5b01c6
sha256 aa2a057e120291ddd4154015bf2b3ff15e99df3db145b670ad48f7afa7ad3680
sha512 a7a7da4aea475a647ebf49fa2b300c2ddfcf882950405f24d4fea60e0e07a7eca47d5b5c8e6398fed3a300071b2c23fb6e3f3b5547c909d86c4b9bce49a0813a
ripemd-160 3611028fdd2c5e159fb8c436cae3b75a086c0b83

81129097 as geometric shapes

Circle

Radius = n
Diameter 162258194
Circumference 509749150.25515
Area 2.0677744128359E+16

Sphere

Radius = n
Volume 2.2367556121744E+24
Surface area 8.2710976513435E+16
Circumference 509749150.25515

Square

Length = n
Perimeter 324516388
Area 6581930380035409
Diagonal 114733869.28048

Cube

Length = n
Surface area 39491582280212454
Volume 5.3398606824914E+23
Space diagonal 140519717.97618

Equilateral Triangle

Length = n
Perimeter 243387291
Area 2.8500594575256E+15
Altitude 70259858.988092

Triangular Pyramid

Length = n
Surface area 2.8500594575256E+15
Volume 6.2930861653018E+22
Height 38244623.093494