81121377 (number)

81121377 is an odd 8-digits composite number following 81121376 and preceding 81121378. In scientific notation, it is written as 8.1121377 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 53654832 positive integers (up to 81121377) that are relatively prime to 81121377.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-one thousand three hundred seventy-seven

Notation

Scientific notation 8.1121377 × 10^7
Engineering notation 8.1121377 × 10^6

Prime Factorization of 81121377

Prime Factorization 3 × 127 × 212917

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81121377
Product of the distinct prime numbers

The prime factorization of 81121377 is 3 × 127 × 212917. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81121377)

Multiplication

n×y
n×2 162242754
n×3 243364131
n×4 324485508
n×5 405606885

Division

n÷y
n÷2 40560688.5
n÷3 27040459
n÷3 20280344.25
n÷5 16224275.4

Exponentiation

ny
n2 6580677806376129
n3 5.3383364524657E+23
n4 4.3305320391331E+31
n5 3.512987221571E+39

Nth Root

y√n
2√n 9006.74064243
3√n 432.89088165946
4√n 94.903849460546
5√n 38.179220991071

Divisors of 81121377

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 -81121376
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 81121377 can be divided by 8 positive divisors. The sum of these divisors (counting 81121377) is 1, the average is 0.125.

Base conversion 81121377

Base System Value
2 Binary 100110101011101000001100001
3 Ternary 12122122101121110
4 Quaternary 10311131001201
5 Quinary 131231341002
6 Senary 12014413533
8 Octal 465350141
10 Decimal 81121377
12 Duodecimal 232012a9
16 Hexadecimal 4d5d061
20 Vigesimal 157038h
36 Base36 1capnl

Cryptographic Hash Functions

md5 924a3470dc1f933f7470041982f33d9b
sha1 62cf27478352a658de08af2ef7a015e2e163056e
sha256 c7d59633e1796e022728057e4b0ae26fdd5b92f1ab8460cad677be8c4d18d28f
sha512 cd2fa4bc1668d127ce9e1c5e17f1f3914812211fcf02de1ff5fda0505a09e7337fdf128935324044fd48c996d7ef9c46f18d65b1c55952a46481010f3d663144
ripemd-160 470727a477751534116142dd4dc0664b7dd8ee40

81121377 as geometric shapes

Circle

Radius = n
Diameter 162242754
Circumference 509700644.06458
Area 2.0673809052153E+16

Sphere

Radius = n
Volume 2.2361171441942E+24
Surface area 8.2695236208611E+16
Circumference 509700644.06458

Square

Length = n
Perimeter 324485508
Area 6580677806376129
Diagonal 114722951.55178

Cube

Length = n
Surface area 39484066838256774
Volume 5.3383364524657E+23
Space diagonal 140506346.54395

Equilateral Triangle

Length = n
Perimeter 243364131
Area 2.8495170772211E+15
Altitude 70253173.271975

Triangular Pyramid

Length = n
Surface area 2.8495170772211E+15
Volume 6.2912898429897E+22
Height 38240983.850594