991291213 is an odd 9-digits composite number following 991291212
and preceding 991291214 . In scientific notation, it is written as 9.91291213 × 10^8.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 901173820 positive integers (up to 991291213) that are relatively prime to 991291213.
991291213 has 4 divisors, whose sum is 1081408608
The reverse of 991291213 is 312192199
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 37
Digital Root 1
Name
nine hundred ninety-one million two hundred ninety-one thousand two hundred thirteen
Scientific notation
9.91291213 × 10^8
Engineering notation
9.91291213 × 10^6
Prime Factorization
11 × 90117383
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
991291213
Product of the distinct prime numbers
The prime factorization of 991291213 is 11 × 90117383.
Since it has a total of 2 prime factors.
9 , 3 , 93 , 22 , 439 , 229 , 5580 , 8101 , 16462 , 84267 , 533889 , 316774 , 5238571 , 1079933 , 87238296 , 13912123 , 392291724 , 834351742 , 9618654541 , 8289329015
n×2
1982582426
n×3
2973873639
n×4
3965164852
n×5
4956456065
n÷2
495645606.5
n÷3
330430404.33333
n÷3
247822803.25
n÷5
198258242.6
n2
982658268971011369
n3
9.7410050741275E+26
n4
9.656172735771E+35
n5
9.57207918418E+44
2 √n
31484.777480554
3 √n
997.08860299336
4 √n
177.43950372043
5 √n
62.985452143535
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-991291212
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 991291213 can be divided by 4 positive divisors.
The sum of these divisors (counting 991291213) is 1, the average is 0.25.
Base
System
Value
2
Binary
111011000101011110011101001101
3
Ternary
2120002021210220101
4
Quaternary
323011132131031
5
Quinary
4012232304323
6
Senary
242210451101
8
Octal
7305363515
10
Decimal
991291213
12
Duodecimal
237b93a91
16
Hexadecimal
3b15e74d
20
Vigesimal
f9fb80d
36
Base36
ge6t71
md5
1f3e7f08603237b553abfed95a485da5
sha1
c192da26d6cd466cfe0099962594c36ddc833e0b
sha256
c597a7acc6b68e8ba72ed941e7dcdf2261b719ef2dc346982ca0712a4c1c8ba0
sha512
02b867358a1665c73d7cd4a922387e370d66bfb6bb333772bd3cfee1e3a1a08d7ef89cb8c420ce84051ca663ee4c75d85d2a96beb27023215708bce0c46c6562
ripemd-160
7e91f7cc437e7c8e2fef44168ca2f973ce576995
Diameter
1982582426
Circumference
6228466384.6578
Area
3.0871119987886E+18
Volume
4.080302663928E+27
Surface area
1.2348447995154E+19
Circumference
6228466384.6578
Perimeter
3965164852
Area
982658268971011369
Diagonal
1401897477.6859
Surface area
5895949613826068214
Volume
9.7410050741275E+26
Space diagonal
1716966746.0126
Perimeter
2973873639
Area
4.2550351208387E+17
Altitude
858483373.00629
Surface area
4.2550351208387E+17
Volume
1.147988457248E+26
Height
467299159.22863