81762021 (number)

81762021 is an odd 8-digits composite number following 81762020 and preceding 81762022. In scientific notation, it is written as 8.1762021 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 48729600 positive integers (up to 81762021) that are relatively prime to 81762021.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred sixty-two thousand twenty-one

Notation

Scientific notation 8.1762021 × 10^7
Engineering notation 8.1762021 × 10^6

Prime Factorization of 81762021

Prime Factorization 99 × 3 × 61 × 4513

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81762021
Product of the distinct prime numbers

The prime factorization of 81762021 is 99 × 3 × 61 × 4513. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 5, 99, 36, 812, 971, 8267, 1963, 60718, 32003, 372788, 224148, 3733192, 7042151, 78041708, 37736061, 175708726, 615511031, 2594282593, 3820410606

Basic calculations (n = 81762021)

Multiplication

n×y
n×2 163524042
n×3 245286063
n×4 327048084
n×5 408810105

Division

n÷y
n÷2 40881010.5
n÷3 27254007
n÷3 20440505.25
n÷5 16352404.2

Exponentiation

ny
n2 6685028078004441
n3 5.4658140609939E+23
n4 4.4689600403708E+31
n5 3.6539120466896E+39

Nth Root

y√n
2√n 9042.2353983957
3√n 434.02745867453
4√n 95.090669355072
5√n 38.239334338306

Divisors of 81762021

1, 3, 61, 99, 183, 297, 4513, 6039, 13539, 18117, 275293, 446787, 825879, 1340361, 27254007, 81762021

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 -81762020
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 81762021 can be divided by 16 positive divisors. The sum of these divisors (counting 81762021) is 1, the average is 0.0625.

Base conversion 81762021

Base System Value
2 Binary 100110111111001011011100101
3 Ternary 12200211221102000
4 Quaternary 10313321123211
5 Quinary 131412341041
6 Senary 12040235513
8 Octal 467713345
10 Decimal 81762021
12 Duodecimal 2346bb99
16 Hexadecimal 4df96e5
20 Vigesimal 15b0511
36 Base36 1cofz9

Cryptographic Hash Functions

md5 c47019b8948327eec02cb814d0b5d03c
sha1 49529c65581e1f4d9f544ad3c05a65020599ff4b
sha256 5464c830e845b70a60642097dd6dba5e9ca5a48557ccb83fe3a23b1d171d6138
sha512 b07b19f552d5fc59d2111edb89a71a43ef4d6c63fbf8ebeeb9b1b00193abb8e74c21e497b95b4dd8445422f8fff457ea886062ecc37ff08a0f14c1e0924e3c8b
ripemd-160 26d243bf46462a059d579df3f1549af5690d78c3

81762021 as geometric shapes

Circle

Radius = n
Diameter 163524042
Circumference 513725929.03251
Area 2.10016350989E+16

Sphere

Radius = n
Volume 2.2895148399875E+24
Surface area 8.4006540395601E+16
Circumference 513725929.03251

Square

Length = n
Perimeter 327048084
Area 6685028078004441
Diagonal 115628958.98523

Cube

Length = n
Surface area 40110168468026646
Volume 5.4658140609939E+23
Space diagonal 141615974.50151

Equilateral Triangle

Length = n
Perimeter 245286063
Area 2.8947020702821E+15
Altitude 70807987.250757

Triangular Pyramid

Length = n
Surface area 2.8947020702821E+15
Volume 6.4415236453893E+22
Height 38542986.328411