8991397988 (number)

8991397988 is an even 10-digits composite number following 8991397987 and preceding 8991397989. In scientific notation, it is written as 8.991397988 × 10^9. The sum of its digits is 71. It has a total of 4 prime factors and 12 positive divisors. There are 4231246080 positive integers (up to 8991397988) that are relatively prime to 8991397988.

Interesting facts

Basic properties

Name

Name eight billion nine hundred ninety-one million three hundred ninety-seven thousand nine hundred eighty-eight

Notation

Scientific notation 8.991397988 × 10^9
Engineering notation 8.991397988 × 10^9

Prime Factorization of 8991397988

Prime Factorization 2 × 2 × 17 × 132226441

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 4495698994
Product of the distinct prime numbers

The prime factorization of 8991397988 is 2 × 2 × 17 × 132226441. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 2, 3, 60, 947, 826, 4813, 1629, 76883, 90194, 449314, 985339, 2189890, 976690, 9857034, 20547126, 278825815, 982743773, 3816150099, 6554831806

Basic calculations (n = 8991397988)

Multiplication

n×y
n×2 17982795976
n×3 26974193964
n×4 35965591952
n×5 44956989940

Division

n÷y
n÷2 4495698994
n÷3 2997132662.6667
n÷3 2247849497
n÷5 1798279597.6

Exponentiation

ny
n2 8.084523777861E+19
n3 7.2691170830198E+29
n4 6.5359524714801E+39
n5 5.8767349901729E+49

Nth Root

y√n
2√n 94822.982382965
3√n 2079.4209115856
4√n 307.93340576002
5√n 97.896112085239

Divisors of 8991397988

1, 2, 4, 17, 34, 68, 132226441, 264452882, 528905764, 2247849497, 4495698994, 8991397988

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -8991397987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 8991397988 can be divided by 12 positive divisors. The sum of these divisors (counting 8991397988) is 1, the average is 0.083333333333333.

Base conversion 8991397988

Base System Value
2 Binary 1000010111111011011101100001100100
3 Ternary 212012121220100021022
4 Quaternary 20113323131201210
5 Quinary 121403244213423
6 Senary 4044112510312
8 Octal 102773354144
10 Decimal 8991397988
12 Duodecimal 18ab24b398
16 Hexadecimal 217edd864
20 Vigesimal 709g4ej8
36 Base36 44p8v38

Cryptographic Hash Functions

md5 d52a53cfd131fb3420769d54a199355d
sha1 155cad045ccaa124e6ede5b6346384e297fa5055
sha256 35a6d46181011b05bc788cce6a25201219df07e05b5c2f02b7b20f3c0a06d8fd
sha512 49b012bd130946c5074316b6877d2172869cee2f6ed8ec0feecb6a056878034e287a8c0e98c27a25ef79ea937b788dbd01ecedb2b46d77a057d76a890aab6da7
ripemd-160 c086b5cba8b3c510e9d7ea09efcaea3182967df4

8991397988 as geometric shapes

Circle

Radius = n
Diameter 17982795976
Circumference 56494619729.206
Area 2.53982805083E+20

Sphere

Radius = n
Volume 3.0448806434799E+30
Surface area 1.015931220332E+21
Circumference 56494619729.206

Square

Length = n
Perimeter 35965591952
Area 8.084523777861E+19
Diagonal 12715756979.324

Cube

Length = n
Surface area 4.8507142667166E+20
Volume 7.2691170830198E+29
Space diagonal 15573558146.289

Equilateral Triangle

Length = n
Perimeter 26974193964
Area 3.5007014845635E+19
Altitude 7786779073.1443

Triangular Pyramid

Length = n
Surface area 3.5007014845635E+19
Volume 8.5667366377371E+28
Height 4238585659.7746