1991551115 is an odd 10-digits composite number following 1991551114
and preceding 1991551116 . In scientific notation, it is written as 1.991551115 × 10^9.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 1581148512 positive integers (up to 1991551115) that are relatively prime to 1991551115.
1991551115 has 16 divisors, whose sum is 2408044800
The reverse of 1991551115 is 5111551991
Previous prime number is 2659
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 38
Digital Root 2
Name
one billion nine hundred ninety-one million five hundred fifty-one thousand one hundred fifteen
Scientific notation
1.991551115 × 10^9
Engineering notation
1.991551115 × 10^9
Prime Factorization
5 × 163 × 2659 × 919
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1991551115
Product of the distinct prime numbers
The prime factorization of 1991551115 is 5 × 163 × 2659 × 919.
Since it has a total of 4 prime factors.
4 , 2 , 55 , 43 , 416 , 514 , 8158 , 7910 , 48770 , 78313 , 600036 , 548251 , 1993467 , 9522470 , 64064767 , 57640337 , 423477774 , 248989415 , 5683598833 , 4316121490
n×2
3983102230
n×3
5974653345
n×4
7966204460
n×5
9957755575
n÷2
995775557.5
n÷3
663850371.66667
n÷3
497887778.75
n÷5
398310223
n2
3966275843657743225
n3
7.8990410788341E+27
n4
1.5731344067983E+37
n5
3.132977581904E+46
2 √n
44626.798171054
3 √n
1258.144391067
4 √n
211.25055780058
5 √n
72.416626829583
1 , 5 , 163 , 815 , 919 , 2659 , 4595 , 13295 , 149797 , 433417 , 748985 , 2167085 , 2443621 , 12218105 , 398310223 , 1991551115
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
-1991551114
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 1991551115 can be divided by 16 positive divisors.
The sum of these divisors (counting 1991551115) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110101101001010100010001011
3
Ternary
12010210110021112102
4
Quaternary
1312231022202023
5
Quinary
13034314113430
6
Senary
525341504015
8
Octal
16655124213
10
Decimal
1991551115
12
Duodecimal
476b7200b
16
Hexadecimal
76b4a88b
20
Vigesimal
1b273hff
36
Base36
wxpuob
md5
488647b7c1288f044500ed4a51312104
sha1
20364cfaa0168414d4abd41c0888cc5b0b591377
sha256
73fac68dcbb72e0b18a01590fcbc50010c76e373574080b5c549673f617cc48c
sha512
6fdb8ee3441bb3b54c01a819acca0809ec6056522a3cccbb105f86547a7e8f618c0e21a9f62f96fb7ceeefaa4bbfd88621a111eed5220e89c5597322e230fbf2
ripemd-160
35f04fff79085c8c5b4e89c3b51efe40224edb2f
Diameter
3983102230
Circumference
12513284704.265
Area
1.2460423052546E+19
Volume
3.3087425898226E+28
Surface area
4.9841692210183E+19
Circumference
12513284704.265
Perimeter
7966204460
Area
3966275843657743225
Diagonal
2816478596.9923
Surface area
2.3797655061946E+19
Volume
7.8990410788341E+27
Space diagonal
3449467717.0504
Perimeter
5974653345
Area
1.7174478195121E+18
Altitude
1724733858.5252
Surface area
1.7174478195121E+18
Volume
9.3091091861912E+26
Height
938826198.99742