81377215 (number)

81377215 is an odd 8-digits composite number following 81377214 and preceding 81377216. In scientific notation, it is written as 8.1377215 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 60659200 positive integers (up to 81377215) that are relatively prime to 81377215.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred seventy-seven thousand two hundred fifteen

Notation

Scientific notation 8.1377215 × 10^7
Engineering notation 8.1377215 × 10^6

Prime Factorization of 81377215

Prime Factorization 5 × 17 × 101 × 9479

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81377215
Product of the distinct prime numbers

The prime factorization of 81377215 is 5 × 17 × 101 × 9479. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81377215)

Multiplication

n×y
n×2 162754430
n×3 244131645
n×4 325508860
n×5 406886075

Division

n÷y
n÷2 40688607.5
n÷3 27125738.333333
n÷3 20344303.75
n÷5 16275443

Exponentiation

ny
n2 6622251121156225
n3 5.3890035327032E+23
n4 4.3854209911655E+31
n5 3.5687334686359E+39

Nth Root

y√n
2√n 9020.9320471889
3√n 433.34548322278
4√n 94.978587308871
5√n 38.203272350029

Divisors of 81377215

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 -81377214
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 81377215 can be divided by 16 positive divisors. The sum of these divisors (counting 81377215) is 1, the average is 0.0625.

Base conversion 81377215

Base System Value
2 Binary 100110110011011011110111111
3 Ternary 12200010101112221
4 Quaternary 10312123132333
5 Quinary 131313032330
6 Senary 12024110211
8 Octal 466333677
10 Decimal 81377215
12 Duodecimal 23305367
16 Hexadecimal 4d9b7bf
20 Vigesimal 158c30f
36 Base36 1cg727

Cryptographic Hash Functions

md5 ea6a65923652f490909e37d8013a7edb
sha1 c676cf7aebe2cae143860f9e54d2318045015740
sha256 b1724b4e89f5873c354e0c4cfd4b9d664f32b79e144582a9014fc02e26bee1d5
sha512 0c7f415824f8e687b3e4dbec6290dcc362c872d094a1289737064948d1f67d09c5284c1c90eb008349b0df317adc7e5f4b2086cd6dcd6b25e86365aa7225e694
ripemd-160 8e6aa0d1deaf754d9f0ec199209ecc2e5a516362

81377215 as geometric shapes

Circle

Radius = n
Diameter 162754430
Circumference 511308121.62719
Area 2.0804415472451E+16

Sphere

Radius = n
Volume 2.2573405211346E+24
Surface area 8.3217661889805E+16
Circumference 511308121.62719

Square

Length = n
Perimeter 325508860
Area 6622251121156225
Diagonal 115084761.12115

Cube

Length = n
Surface area 39733506726937350
Volume 5.3890035327032E+23
Space diagonal 140949470.95846

Equilateral Triangle

Length = n
Perimeter 244131645
Area 2.8675188505806E+15
Altitude 70474735.479228

Triangular Pyramid

Length = n
Surface area 2.8675188505806E+15
Volume 6.3510015696878E+22
Height 38361587.040384