991639123 is an odd 9-digits prime number following 991639122
and preceding 991639124 . In scientific notation, it is written as 9.91639123 × 10^8.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 991639122 positive integers (up to 991639123) that are relatively prime to 991639123.
991639123 has 2 divisors, whose sum is 991639124
The reverse of 991639123 is 321936199
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 43 Digital Root 7
Name
nine hundred ninety-one million six hundred thirty-nine thousand one hundred twenty-three
Scientific notation
9.91639123 × 10^8
Engineering notation
9.91639123 × 10^6
Prime Factorization
991639123
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
991639123 Product of the distinct prime numbers
The prime factorization of 991639123 is 991639123.
Since it has a total of 1 prime factors.
4 , 10 , 94 , 74 , 84 , 659 , 7702 , 5879 , 87207 , 42060 , 458586 , 354737 , 1469520 , 3738791 , 91800718 , 47872184 , 810199844 , 847597989 , 985356760 , 3571448156
n×2
1983278246
n×3
2974917369
n×4
3966556492
n×5
4958195615
n÷2
495819561.5
n÷3
330546374.33333
n÷3
247909780.75
n÷5
198327824.6
n2
983348150264209129
n3
9.7512649733167E+26
n4
9.6697358462804E+35
n5
9.5888883742472E+44
2 √n31490.302046821
3 √n997.20523757936
4 √n177.45507050186
5 √n62.989872679637
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
991639124 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
495819562 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
31490.302062699 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999979831 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 991639123 can be divided by 2 positive divisors.
The sum of these divisors (counting 991639123) is 991639124, the average is 495819562.
Base
System
Value
2
Binary
111011000110110011011001010011
3
Ternary
2120002221111010221
4
Quaternary
323012303121103
5
Quinary
4012324422443
6
Senary
242222133511
8
Octal
7306633123
10
Decimal
991639123
12
Duodecimal
238121297
16
Hexadecimal
3b1b3653
20
Vigesimal
f9hehg3
36
Base36
gee9n7
md5
a3c77be49c89bc3c8cee4f4aaed0f08d
sha1
85a84ca3ec7523a226807e9ff7c244629af87c88
sha256
48d3c55d9556ae615af0f2f4dac5e847f39a74d5d000875e89c6fcf102e5b07c
sha512
2c1d52f74be00fbdb6ccda2b2d65ccd45a6f135550c6a269edd397bc1013a8cad8865f171b5fc6e5392126ea1c1a8177729eab03880a09abee42a6803e415769
ripemd-160
f2e6a5ee7b5b65b7ec91fa2bb96b054e71587e71
Diameter
1983278246
Circumference
6230652367.6581
Area
3.0892793247912E+18
Volume
4.0846003204506E+27
Surface area
1.2357117299165E+19
Circumference
6230652367.6581
Perimeter
3966556492
Area
983348150264209129
Diagonal
1402389496.7264
Surface area
5900088901585254774
Volume
9.7512649733167E+26
Space diagonal
1717569343.809
Perimeter
2974917369
Area
4.2580223944662E+17
Altitude
858784671.90452
Surface area
4.2580223944662E+17
Volume
1.1491975979632E+26
Height
467463165.57545