81642008 (number)

81642008 is an even 8-digits composite number following 81642007 and preceding 81642009. In scientific notation, it is written as 8.1642008 × 10^7. The sum of its digits is 29. It has a total of 6 prime factors and 32 positive divisors. There are 34243872 positive integers (up to 81642008) that are relatively prime to 81642008.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty-two thousand eight

Notation

Scientific notation 8.1642008 × 10^7
Engineering notation 8.1642008 × 10^6

Prime Factorization of 81642008

Prime Factorization 2 × 2 × 2 × 7 × 47 × 31019

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20410502
Product of the distinct prime numbers

The prime factorization of 81642008 is 2 × 2 × 2 × 7 × 47 × 31019. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 1, 11, 54, 959, 551, 2656, 7432, 41005, 68607, 296554, 746071, 1214968, 8722067, 90659249, 25806049, 298013566, 673330158, 932973372, 5391407966

Basic calculations (n = 81642008)

Multiplication

n×y
n×2 163284016
n×3 244926024
n×4 326568032
n×5 408210040

Division

n÷y
n÷2 40821004
n÷3 27214002.666667
n÷3 20410502
n÷5 16328401.6

Exponentiation

ny
n2 6665417470272064
n3 5.4417806643129E+23
n4 4.4427790053008E+31
n5 3.62717399093E+39

Nth Root

y√n
2√n 9035.5967152148
3√n 433.81499473133
4√n 95.055755823699
5√n 38.228101949396

Divisors of 81642008

1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 31019, 62038, 124076, 217133, 248152, 434266, 868532, 1457893, 1737064, 2915786, 5831572, 10205251, 11663144, 20410502, 40821004, 81642008

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81642007
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81642008 can be divided by 32 positive divisors. The sum of these divisors (counting 81642008) is 1, the average is 0.03125.

Base conversion 81642008

Base System Value
2 Binary 100110111011100001000011000
3 Ternary 12200121211210002
4 Quaternary 10313130020120
5 Quinary 131400021013
6 Senary 12033512132
8 Octal 467341030
10 Decimal 81642008
12 Duodecimal 23412648
16 Hexadecimal 4ddc218
20 Vigesimal 15a5508
36 Base36 1clvdk

Cryptographic Hash Functions

md5 902341753a24bce850422ff91af21425
sha1 b8cf8789a66589fa2c2815c4be23ebac7b0afbae
sha256 475db9fa3632dccff557d0e808fd67c1253b7eae83ca62d61854fdd134120b5e
sha512 85d2cc93ac3ec73116557edd8ad381f1a15a06e32642869377f13f365630cae804be2c07f58d61f8e6f98a8157081d9d98bc669a5bdb18057b7829dd3fe373b1
ripemd-160 fa292d653ee9515ac35e0dd92c0e3e19499f93e0

81642008 as geometric shapes

Circle

Radius = n
Diameter 163284016
Circumference 512971865.11424
Area 2.0940026557716E+16

Sphere

Radius = n
Volume 2.279447754327E+24
Surface area 8.3760106230863E+16
Circumference 512971865.11424

Square

Length = n
Perimeter 326568032
Area 6665417470272064
Diagonal 115459234.97297

Cube

Length = n
Surface area 39992504821632384
Volume 5.4417806643129E+23
Space diagonal 141408105.88794

Equilateral Triangle

Length = n
Perimeter 244926024
Area 2.8862104280421E+15
Altitude 70704052.943972

Triangular Pyramid

Length = n
Surface area 2.8862104280421E+15
Volume 6.4132000157758E+22
Height 38486411.657658