991838961 (number)

991838961 is an odd 9-digits composite number following 991838960 and preceding 991838962. In scientific notation, it is written as 9.91838961 × 10^8. The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors. There are 647102016 positive integers (up to 991838961) that are relatively prime to 991838961.

Interesting facts

Basic properties

Name

Name nine hundred ninety-one million eight hundred thirty-eight thousand nine hundred sixty-one

Notation

Scientific notation 9.91838961 × 10^8
Engineering notation 9.91838961 × 10^6

Prime Factorization of 991838961

Prime Factorization 9 × 83 × 107 × 12409

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 991838961
Product of the distinct prime numbers

The prime factorization of 991838961 is 9 × 83 × 107 × 12409. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 991838961)

Multiplication

n×y
n×2 1983677922
n×3 2975516883
n×4 3967355844
n×5 4959194805

Division

n÷y
n÷2 495919480.5
n÷3 330612987
n÷3 247959740.25
n÷5 198367792.2

Exponentiation

ny
n2 983744524557559521
n3 9.7571614712661E+26
n4 9.6775328959698E+35
n5 9.598554172582E+44

Nth Root

y√n
2√n 31493.474895603
3√n 997.27221964662
4√n 177.46401014178
5√n 62.99241125548

Divisors of 991838961

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 -991838960
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 991838961 can be divided by 16 positive divisors. The sum of these divisors (counting 991838961) is 1, the average is 0.0625.

Base conversion 991838961

Base System Value
2 Binary 111011000111100100001011110001
3 Ternary 2120010022122021100
4 Quaternary 323013210023301
5 Quinary 4012402321321
6 Senary 242230315013
8 Octal 7307441361
10 Decimal 991838961
12 Duodecimal 2381b8a69
16 Hexadecimal 3b1e42f1
20 Vigesimal f9ijh81
36 Base36 geiju9

Cryptographic Hash Functions

md5 c7ebdf58f4754cc78716cd7d981da6ef
sha1 cda6c63be1a148e034f9d92592b6674cad55ef3a
sha256 ea6f73288180ee8a19f23be36da848d4c469d4abf494fd381748ecbcae86eb56
sha512 a69955a40afd5167c3924ebe1b254bbac09c4ac3d5fad5990fa2850f9a556fb94cd8f2f558601bfe77fdd3de56262e6969e41595a9c034a3047fd40e14a3593f
ripemd-160 d4fa5731f3df0c8d1356e354de90bff5107f2a62

991838961 as geometric shapes

Circle

Radius = n
Diameter 1983677922
Circumference 6231907986.8435
Area 3.0905245713592E+18

Sphere

Radius = n
Volume 4.0870702397359E+27
Surface area 1.2362098285437E+19
Circumference 6231907986.8435

Square

Length = n
Perimeter 3967355844
Area 983744524557559521
Diagonal 1402672110.3362

Cube

Length = n
Surface area 5902467147345357126
Volume 9.7571614712661E+26
Space diagonal 1717915473.3783

Equilateral Triangle

Length = n
Perimeter 2975516883
Area 4.2597387455035E+17
Altitude 858957736.68916

Triangular Pyramid

Length = n
Surface area 4.2597387455035E+17
Volume 1.1498925069107E+26
Height 467557370.11208