81371718 (number)

81371718 is an even 8-digits composite number following 81371717 and preceding 81371719. In scientific notation, it is written as 8.1371718 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 25696224 positive integers (up to 81371718) that are relatively prime to 81371718.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1371718 × 10^7
Engineering notation 8.1371718 × 10^6

Prime Factorization of 81371718

Prime Factorization 2 × 9 × 19 × 237929

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81371718
Product of the distinct prime numbers

The prime factorization of 81371718 is 2 × 9 × 19 × 237929. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 7, 76, 92, 930, 800, 2385, 8034, 40548, 33328, 707318, 33144, 1584279, 3998076, 30068586, 38193173, 303667919, 458344276, 9545751870, 4354669276

Basic calculations (n = 81371718)

Multiplication

n×y
n×2 162743436
n×3 244115154
n×4 325486872
n×5 406858590

Division

n÷y
n÷2 40685859
n÷3 27123906
n÷3 20342929.5
n÷5 16274343.6

Exponentiation

ny
n2 6621356490271524
n3 5.3879115310384E+23
n4 4.3842361771261E+31
n5 3.567528298505E+39

Nth Root

y√n
2√n 9020.6273617748
3√n 433.33572556207
4√n 94.976983326355
5√n 38.202756212772

Divisors of 81371718

1, 2, 9, 18, 19, 38, 171, 342, 237929, 475858, 2141361, 4282722, 4520651, 9041302, 40685859, 81371718

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 -81371717
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 81371718 can be divided by 16 positive divisors. The sum of these divisors (counting 81371718) is 1, the average is 0.0625.

Base conversion 81371718

Base System Value
2 Binary 100110110011010001001000110
3 Ternary 12200010010000100
4 Quaternary 10312122021012
5 Quinary 131312343333
6 Senary 12024024530
8 Octal 466321106
10 Decimal 81371718
12 Duodecimal 23302146
16 Hexadecimal 4d9a246
20 Vigesimal 158b95i
36 Base36 1cg2ti

Cryptographic Hash Functions

md5 40ec23e475a16bd94e9f1ea0652bbc57
sha1 4117b5b59a469eb7962924857047d038c52a1064
sha256 bf9fd93ecdc297c23e5b61d6a88011bf8ada0300eda5cbc58e4aa38fefefb08b
sha512 ab7be1019659994667efa8012ae49fb299a726fd5349a2964b64554f6bfeb7257834c203b71794cd558bec6b9cb5674c947da4278ba2950fcfb25f114343c0a0
ripemd-160 ec5c8c06e08a2a2a9f4be7f81b74458ae5cc608f

81371718 as geometric shapes

Circle

Radius = n
Diameter 162743436
Circumference 511273582.95756
Area 2.0801604906636E+16

Sphere

Radius = n
Volume 2.2568831045469E+24
Surface area 8.3206419626544E+16
Circumference 511273582.95756

Square

Length = n
Perimeter 325486872
Area 6621356490271524
Diagonal 115076987.1892

Cube

Length = n
Surface area 39728138941629144
Volume 5.3879115310384E+23
Space diagonal 140939949.87517

Equilateral Triangle

Length = n
Perimeter 244115154
Area 2.8671314640441E+15
Altitude 70469974.937583

Triangular Pyramid

Length = n
Surface area 2.8671314640441E+15
Volume 6.3497146333841E+22
Height 38358995.729733