8991397987 (number)

8991397987 is an odd 10-digits composite number following 8991397986 and preceding 8991397988. In scientific notation, it is written as 8.991397987 × 10^9. The sum of its digits is 70. It has a total of 4 prime factors and 16 positive divisors. There are 7030800000 positive integers (up to 8991397987) that are relatively prime to 8991397987.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.991397987 × 10^9
Engineering notation 8.991397987 × 10^9

Prime Factorization of 8991397987

Prime Factorization 209 × 61 × 13 × 54251

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 8991397987
Product of the distinct prime numbers

The prime factorization of 8991397987 is 209 × 61 × 13 × 54251. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 6, 86, 62, 798, 189, 2121, 4685, 5285, 93048, 398931, 325425, 1959205, 8582798, 33654168, 41262800, 566558203, 69357536, 5467974591, 2123824228

Basic calculations (n = 8991397987)

Multiplication

n×y
n×2 17982795974
n×3 26974193961
n×4 35965591948
n×5 44956989935

Division

n÷y
n÷2 4495698993.5
n÷3 2997132662.3333
n÷3 2247849496.75
n÷5 1798279597.4

Exponentiation

ny
n2 8.0845237760628E+19
n3 7.2691170805944E+29
n4 6.5359524685724E+39
n5 5.876734986905E+49

Nth Root

y√n
2√n 94822.982377692
3√n 2079.4209115085
4√n 307.93340575146
5√n 97.896112083062

Divisors of 8991397987

1, 13, 61, 209, 793, 2717, 12749, 54251, 165737, 705263, 3309311, 11338459, 43021043, 147399967, 691645999, 8991397987

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 -8991397986
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 8991397987 can be divided by 16 positive divisors. The sum of these divisors (counting 8991397987) is 1, the average is 0.0625.

Base conversion 8991397987

Base System Value
2 Binary 1000010111111011011101100001100011
3 Ternary 212012121220100021021
4 Quaternary 20113323131201203
5 Quinary 121403244213422
6 Senary 4044112510311
8 Octal 102773354143
10 Decimal 8991397987
12 Duodecimal 18ab24b397
16 Hexadecimal 217edd863
20 Vigesimal 709g4ej7
36 Base36 44p8v37

Cryptographic Hash Functions

md5 0b08d49edfc870a91fd44490bfc70b74
sha1 5ba997d796cc2c79376aa6de741b808111d31fc8
sha256 64ac663878fbd380f4eb76d09c556d7c35dff55b96876ac0249e308a22783957
sha512 02ef58c546ae6a266626663f82db74960d791c954e5f5d9ac111d4c9e3d895b220f2786b448e635e8f5f5001c9237585533f91a2865a3c0b627a4c1219074012
ripemd-160 a07964cfdd259020ad5ecfdfb289543a706aa8d9

8991397987 as geometric shapes

Circle

Radius = n
Diameter 17982795974
Circumference 56494619722.923
Area 2.5398280502651E+20

Sphere

Radius = n
Volume 3.0448806424639E+30
Surface area 1.015931220106E+21
Circumference 56494619722.923

Square

Length = n
Perimeter 35965591948
Area 8.0845237760628E+19
Diagonal 12715756977.91

Cube

Length = n
Surface area 4.8507142656377E+20
Volume 7.2691170805944E+29
Space diagonal 15573558144.557

Equilateral Triangle

Length = n
Perimeter 26974193961
Area 3.5007014837848E+19
Altitude 7786779072.2783

Triangular Pyramid

Length = n
Surface area 3.5007014837848E+19
Volume 8.5667366348788E+28
Height 4238585659.3032