81420009 (number)

81420009 is an odd 8-digits composite number following 81420008 and preceding 81420010. In scientific notation, it is written as 8.1420009 × 10^7. The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors. There are 49282560 positive integers (up to 81420009) that are relatively prime to 81420009.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred twenty thousand nine

Notation

Scientific notation 8.1420009 × 10^7
Engineering notation 8.1420009 × 10^6

Prime Factorization of 81420009

Prime Factorization 3 × 11 × 1657 × 1489

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81420009
Product of the distinct prime numbers

The prime factorization of 81420009 is 3 × 11 × 1657 × 1489. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 10, 100, 21, 777, 26, 3725, 4762, 13510, 36616, 46039, 473006, 5972573, 8455383, 13791873, 45156597, 939387182, 688982703, 2796960263, 9288092019

Basic calculations (n = 81420009)

Multiplication

n×y
n×2 162840018
n×3 244260027
n×4 325680036
n×5 407100045

Division

n÷y
n÷2 40710004.5
n÷3 27140003
n÷3 20355002.25
n÷5 16284001.8

Exponentiation

ny
n2 6629217865560081
n3 5.3975097827686E+23
n4 4.3946529509061E+31
n5 3.5781268281465E+39

Nth Root

y√n
2√n 9023.3036632932
3√n 433.42143133211
4√n 94.9910714925
5√n 38.207289511472

Divisors of 81420009

1, 3, 11, 33, 1489, 1657, 4467, 4971, 16379, 18227, 49137, 54681, 2467273, 7401819, 27140003, 81420009

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 -81420008
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 81420009 can be divided by 16 positive divisors. The sum of these divisors (counting 81420009) is 1, the average is 0.0625.

Base conversion 81420009

Base System Value
2 Binary 100110110100101111011101001
3 Ternary 12200012120020220
4 Quaternary 10312211323221
5 Quinary 131320420014
6 Senary 12025040253
8 Octal 466457351
10 Decimal 81420009
12 Duodecimal 23326089
16 Hexadecimal 4da5ee9
20 Vigesimal 158ha09
36 Base36 1ch42x

Cryptographic Hash Functions

md5 7f636c40fcc1f9595270bf87a38b5301
sha1 e0b50c578c91480b55ba3bee71db532b65c1d138
sha256 03637293eb0247a7c5476fe13481569ebdae881bb624c8569b26977a9103ec2b
sha512 7aa19e653f8ce4f679db514e19e8a06f74944ecb04d1390c2a96cf6b8a77e264980cec5bf92d77a41520b015f5a05a7cd80b2ed3a7b589fa9f23b53d3654fb86
ripemd-160 7dd244ad3a2363bea40142e5b5fe2a2341ff0849

81420009 as geometric shapes

Circle

Radius = n
Diameter 162840018
Circumference 511577004.25923
Area 2.082630214549E+16

Sphere

Radius = n
Volume 2.26090361083E+24
Surface area 8.3305208581959E+16
Circumference 511577004.25923

Square

Length = n
Perimeter 325680036
Area 6629217865560081
Diagonal 115145280.97634

Cube

Length = n
Surface area 39775307193360486
Volume 5.3975097827686E+23
Space diagonal 141023592.34072

Equilateral Triangle

Length = n
Perimeter 244260027
Area 2.8705355393983E+15
Altitude 70511796.170358

Triangular Pyramid

Length = n
Surface area 2.8705355393983E+15
Volume 6.3610262815274E+22
Height 38381760.325446