81069968 (number)

81069968 is an even 8-digits composite number following 81069967 and preceding 81069969. In scientific notation, it is written as 8.1069968 × 10^7. The sum of its digits is 47. It has a total of 6 prime factors and 20 positive divisors. There are 34744224 positive integers (up to 81069968) that are relatively prime to 81069968.

Interesting facts

Basic properties

Name

Name eighty-one million sixty-nine thousand nine hundred sixty-eight

Notation

Scientific notation 8.1069968 × 10^7
Engineering notation 8.1069968 × 10^6

Prime Factorization of 81069968

Prime Factorization 2 × 2 × 2 × 2 × 7 × 723839

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10133746
Product of the distinct prime numbers

The prime factorization of 81069968 is 2 × 2 × 2 × 2 × 7 × 723839. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 2, 35, 3, 823, 615, 6490, 9114, 92290, 69574, 349835, 223878, 8554837, 3378329, 371071, 6338255, 179764956, 411130338, 7231285056, 2216668297

Basic calculations (n = 81069968)

Multiplication

n×y
n×2 162139936
n×3 243209904
n×4 324279872
n×5 405349840

Division

n÷y
n÷2 40534984
n÷3 27023322.666667
n÷3 20267492
n÷5 16213993.6

Exponentiation

ny
n2 6572339711521024
n3 5.3281937009814E+23
n4 4.3195649283636E+31
n5 3.5018699051636E+39

Nth Root

y√n
2√n 9003.8862720494
3√n 432.79941711204
4√n 94.888810046546
5√n 38.174380705128

Divisors of 81069968

1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 723839, 1447678, 2895356, 5066873, 5790712, 10133746, 11581424, 20267492, 40534984, 81069968

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81069967
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81069968 can be divided by 20 positive divisors. The sum of these divisors (counting 81069968) is 1, the average is 0.05.

Base conversion 81069968

Base System Value
2 Binary 100110101010000011110010000
3 Ternary 12122112210002102
4 Quaternary 10311100132100
5 Quinary 131223214333
6 Senary 12013335532
8 Octal 465203620
10 Decimal 81069968
12 Duodecimal 231975a8
16 Hexadecimal 4d50790
20 Vigesimal 156dei8
36 Base36 1c9lzk

Cryptographic Hash Functions

md5 1056e1dfa2403a7a00c175cbff4c6a9f
sha1 baca8ae5595511c984f397db54e9d904d04cb4f4
sha256 686c0ad2bf8bba2d53ddf3767d53009fb6751b13b3a63b8f0222d627a0e08be0
sha512 a27fe72f28bdd83c7febe34b4eaff73b82631e38ce48cd13b791750498725af7fb4f94bae3e019f123a504deda99324e09a9974c50d26747edfcbcf1ca9fce6a
ripemd-160 458553b1ccf79f26cf47e59329cadfdcbf7fefc6

81069968 as geometric shapes

Circle

Radius = n
Diameter 162139936
Circumference 509377631.79112
Area 2.0647614154611E+16

Sphere

Radius = n
Volume 2.2318685583875E+24
Surface area 8.2590456618444E+16
Circumference 509377631.79112

Square

Length = n
Perimeter 324279872
Area 6572339711521024
Diagonal 114650248.24675

Cube

Length = n
Surface area 39434038269126144
Volume 5.3281937009814E+23
Space diagonal 140417303.54398

Equilateral Triangle

Length = n
Perimeter 243209904
Area 2.8459065762392E+15
Altitude 70208651.771992

Triangular Pyramid

Length = n
Surface area 2.8459065762392E+15
Volume 6.2793364957323E+22
Height 38216749.415584