81008042 (number)

81008042 is an even 8-digits composite number following 81008041 and preceding 81008043. In scientific notation, it is written as 8.1008042 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 39992160 positive integers (up to 81008042) that are relatively prime to 81008042.

Interesting facts

Basic properties

Name

Name eighty-one million eight thousand forty-two

Notation

Scientific notation 8.1008042 × 10^7
Engineering notation 8.1008042 × 10^6

Prime Factorization of 81008042

Prime Factorization 2 × 131 × 233 × 1327

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81008042
Product of the distinct prime numbers

The prime factorization of 81008042 is 2 × 131 × 233 × 1327. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 18, 70, 531, 311, 3756, 7890, 74784, 5236, 250925, 472153, 3055546, 239949, 57912666, 84632676, 837970515, 345719970, 114793187, 9172448403

Basic calculations (n = 81008042)

Multiplication

n×y
n×2 162016084
n×3 243024126
n×4 324032168
n×5 405040210

Division

n÷y
n÷2 40504021
n÷3 27002680.666667
n÷3 20252010.5
n÷5 16201608.4

Exponentiation

ny
n2 6562302868673764
n3 5.3159930640224E+23
n4 4.3063818940204E+31
n5 3.4885156533884E+39

Nth Root

y√n
2√n 9000.4467666889
3√n 432.68918984187
4√n 94.870684443029
5√n 38.168546955863

Divisors of 81008042

1, 2, 131, 233, 262, 466, 1327, 2654, 30523, 61046, 173837, 309191, 347674, 618382, 40504021, 81008042

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 -81008041
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 81008042 can be divided by 16 positive divisors. The sum of these divisors (counting 81008042) is 1, the average is 0.0625.

Base conversion 81008042

Base System Value
2 Binary 100110101000001010110101010
3 Ternary 12122102122010212
4 Quaternary 10311001112222
5 Quinary 131214224132
6 Senary 12012141122
8 Octal 465012652
10 Decimal 81008042
12 Duodecimal 231677a2
16 Hexadecimal 4d415aa
20 Vigesimal 1566022
36 Base36 1c8a7e

Cryptographic Hash Functions

md5 280ca61fd4d53d5aa74e4485591133b9
sha1 64e3ee3ac97b555e50437e01e7a5968ad7f052b9
sha256 e5601a10f12e8a1f416fceb24821a29668d7ead34be79fcc2a6b7d56872720aa
sha512 4c326de08aad032d4c634f2875883b1f3c1a267fe888028a04db93130c4761ef57db954da00c356edda5c37b73219963ce3bc456bc3d343c4cd3035f5fe994d1
ripemd-160 9c87ee8a956477eb48d0c8750272b00d3bfad549

81008042 as geometric shapes

Circle

Radius = n
Diameter 162016084
Circumference 508988539.25779
Area 2.0616082482857E+16

Sphere

Radius = n
Volume 2.226757967529E+24
Surface area 8.2464329931427E+16
Circumference 508988539.25779

Square

Length = n
Perimeter 324032168
Area 6562302868673764
Diagonal 114562671.65769

Cube

Length = n
Surface area 39373817212042584
Volume 5.3159930640224E+23
Space diagonal 140310044.56567

Equilateral Triangle

Length = n
Perimeter 243024126
Area 2.8415604957995E+15
Altitude 70155022.282837

Triangular Pyramid

Length = n
Surface area 2.8415604957995E+15
Volume 6.2649579071849E+22
Height 38187557.21923