81371208 (number)

81371208 is an even 8-digits composite number following 81371207 and preceding 81371209. In scientific notation, it is written as 8.1371208 × 10^7. The sum of its digits is 30. It has a total of 6 prime factors and 32 positive divisors. There are 26796288 positive integers (up to 81371208) that are relatively prime to 81371208.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred seventy-one thousand two hundred eight

Notation

Scientific notation 8.1371208 × 10^7
Engineering notation 8.1371208 × 10^6

Prime Factorization of 81371208

Prime Factorization 2 × 2 × 2 × 3 × 83 × 40849

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20342802
Product of the distinct prime numbers

The prime factorization of 81371208 is 2 × 2 × 2 × 3 × 83 × 40849. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 5, 45, 61, 225, 342, 6829, 872, 19718, 4840, 47632, 541543, 1494392, 2044079, 21583255, 762392, 991060668, 758969714, 6596750445, 8007591843

Basic calculations (n = 81371208)

Multiplication

n×y
n×2 162742416
n×3 244113624
n×4 325484832
n×5 406856040

Division

n÷y
n÷2 40685604
n÷3 27123736
n÷3 20342802
n÷5 16274241.6

Exponentiation

ny
n2 6621273491379264
n3 5.3878102249191E+23
n4 4.3841262647642E+31
n5 3.5674165018839E+39

Nth Root

y√n
2√n 9020.5990931867
3√n 433.33482024473
4√n 94.97683450814
5√n 38.202708325238

Divisors of 81371208

1, 2, 3, 4, 6, 8, 12, 24, 83, 166, 249, 332, 498, 664, 996, 1992, 40849, 81698, 122547, 163396, 245094, 326792, 490188, 980376, 3390467, 6780934, 10171401, 13561868, 20342802, 27123736, 40685604, 81371208

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81371207
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81371208 can be divided by 32 positive divisors. The sum of these divisors (counting 81371208) is 1, the average is 0.03125.

Base conversion 81371208

Base System Value
2 Binary 100110110011010000001001000
3 Ternary 12200010002022110
4 Quaternary 10312122001020
5 Quinary 131312334313
6 Senary 12024022320
8 Octal 466320110
10 Decimal 81371208
12 Duodecimal 233019a0
16 Hexadecimal 4d9a048
20 Vigesimal 158b808
36 Base36 1cg2fc

Cryptographic Hash Functions

md5 2bbeb0a6b4d69b7ec4535e54fc5f7f78
sha1 276d29a4074aa4b44e57e80e63f751c88f2054d9
sha256 c8adad3cd03fc5dbeaa59d45b1efbff79a7e8d2b3ae4685dede1f585081d070a
sha512 02e37c8ff30f110be2bb5431971adea970d23748e102f1d89a34665fafd29209752554a84ba3de6cdbbb102b3d3d66e102372bc807b0460fc08d1dbfebcecc2c
ripemd-160 57d85ac7eb5f14d8e05fb11ff44cdf2852a150b6

81371208 as geometric shapes

Circle

Radius = n
Diameter 162742416
Circumference 511270378.53305
Area 2.0801344157926E+16

Sphere

Radius = n
Volume 2.2568406695389E+24
Surface area 8.3205376631704E+16
Circumference 511270378.53305

Square

Length = n
Perimeter 325484832
Area 6621273491379264
Diagonal 115076265.94028

Cube

Length = n
Surface area 39727640948275584
Volume 5.3878102249191E+23
Space diagonal 140939066.52926

Equilateral Triangle

Length = n
Perimeter 244113624
Area 2.8670955244695E+15
Altitude 70469533.264628

Triangular Pyramid

Length = n
Surface area 2.8670955244695E+15
Volume 6.3495952429775E+22
Height 38358755.313427