81016912 (number)

81016912 is an even 8-digits composite number following 81016911 and preceding 81016913. In scientific notation, it is written as 8.1016912 × 10^7. The sum of its digits is 28. It has a total of 7 prime factors and 40 positive divisors. There are 37717632 positive integers (up to 81016912) that are relatively prime to 81016912.

Interesting facts

Basic properties

Name

Name eighty-one million sixteen thousand nine hundred twelve

Notation

Scientific notation 8.1016912 × 10^7
Engineering notation 8.1016912 × 10^6

Prime Factorization of 81016912

Prime Factorization 2 × 2 × 2 × 2 × 19 × 59 × 4517

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 10127114
Product of the distinct prime numbers

The prime factorization of 81016912 is 2 × 2 × 2 × 2 × 19 × 59 × 4517. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 8, 99, 4, 453, 358, 1765, 7830, 85272, 22292, 20723, 954887, 1171708, 6930299, 1335349, 69131276, 427108836, 132537816, 5394053388, 3453559003

Basic calculations (n = 81016912)

Multiplication

n×y
n×2 162033824
n×3 243050736
n×4 324067648
n×5 405084560

Division

n÷y
n÷2 40508456
n÷3 27005637.333333
n÷3 20254228
n÷5 16203382.4

Exponentiation

ny
n2 6563740030015744
n3 5.3177394840266E+23
n4 4.3082683181631E+31
n5 3.4904259520501E+39

Nth Root

y√n
2√n 9000.9395065182
3√n 432.7049817433
4√n 94.873281309957
5√n 38.169382774569

Divisors of 81016912

1, 2, 4, 8, 16, 19, 38, 59, 76, 118, 152, 236, 304, 472, 944, 1121, 2242, 4484, 4517, 8968, 9034, 17936, 18068, 36136, 72272, 85823, 171646, 266503, 343292, 533006, 686584, 1066012, 1373168, 2132024, 4264048, 5063557, 10127114, 20254228, 40508456, 81016912

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81016911
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81016912 can be divided by 40 positive divisors. The sum of these divisors (counting 81016912) is 1, the average is 0.025.

Base conversion 81016912

Base System Value
2 Binary 100110101000011100001010000
3 Ternary 12122110002022101
4 Quaternary 10311003201100
5 Quinary 131220020122
6 Senary 12012250144
8 Octal 465034120
10 Decimal 81016912
12 Duodecimal 23170954
16 Hexadecimal 4d43850
20 Vigesimal 156725c
36 Base36 1c8h1s

Cryptographic Hash Functions

md5 1f9d4a3de02b4ef38056a668daa0b9bb
sha1 6781141dc32da210ef06a148a8d3b598b5f142de
sha256 865a4a59e3d870768cb723d2b124a96cdd0b5bc0070a79cb3ed0a0889f210032
sha512 e3d4b4dbfca2757d905403e7378056ded468ebb22f43b50aa267e73675ec991990992f7d58cd9e0bd9c72308eadeb1688d22c00c52b0bb801aa49d34cea76ace
ripemd-160 565e03312884faddd1a404d5e3f65e33753e77f8

81016912 as geometric shapes

Circle

Radius = n
Diameter 162033824
Circumference 509044271.11146
Area 2.0620597458371E+16

Sphere

Radius = n
Volume 2.2274895062297E+24
Surface area 8.2482389833483E+16
Circumference 509044271.11146

Square

Length = n
Perimeter 324067648
Area 6563740030015744
Diagonal 114575215.73199

Cube

Length = n
Surface area 39382440180094464
Volume 5.3177394840266E+23
Space diagonal 140325407.85634

Equilateral Triangle

Length = n
Perimeter 243050736
Area 2.8421828049152E+15
Altitude 70162703.928168

Triangular Pyramid

Length = n
Surface area 2.8421828049152E+15
Volume 6.2670160828978E+22
Height 38191738.577329