2018991691 is an odd 10-digits composite number following 2018991690
and preceding 2018991692 . In scientific notation, it is written as 2.018991691 × 10^9.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 1955106720 positive integers (up to 2018991691) that are relatively prime to 2018991691.
2018991691 has 8 divisors, whose sum is 2083394384
The reverse of 2018991691 is 1961998102
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 46
Digital Root 1
Name
two billion eighteen million nine hundred ninety-one thousand six hundred ninety-one
Scientific notation
2.018991691 × 10^9
Engineering notation
2.018991691 × 10^9
Prime Factorization
37 × 211 × 258613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2018991691
Product of the distinct prime numbers
The prime factorization of 2018991691 is 37 × 211 × 258613.
Since it has a total of 3 prime factors.
2 , 2 , 1 , 20 , 276 , 938 , 5153 , 2157 , 15740 , 92827 , 995765 , 861151 , 6933677 , 557227 , 69551648 , 57967725 , 13204942 , 430214709 , 2426155580 , 8249862846
n×2
4037983382
n×3
6056975073
n×4
8075966764
n×5
10094958455
n÷2
1009495845.5
n÷3
672997230.33333
n÷3
504747922.75
n÷5
403798338.2
n2
4076327448327039481
n3
8.2300712479675E+27
n4
1.6616445465984E+37
n5
3.3548465329777E+46
2 √n
44933.191417926
3 √n
1263.8964981195
4 √n
211.97450652832
5 √n
72.615094407783
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2018991690
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2018991691 can be divided by 8 positive divisors.
The sum of these divisors (counting 2018991691) is 1, the average is 0.125.
Base
System
Value
2
Binary
1111000010101110101111001001011
3
Ternary
12012201002101221001
4
Quaternary
1320111311321023
5
Quinary
13113330213231
6
Senary
532201555431
8
Octal
17025657113
10
Decimal
2018991691
12
Duodecimal
4841a5b77
16
Hexadecimal
78575e4b
20
Vigesimal
1baidj4b
36
Base36
xe1zyj
md5
c7a77ac78e88e4533b6f90533fecdd3d
sha1
cb2d9b6a26f226cced7785880839dcf78a59280d
sha256
84e070e159af075e4a580279a6db9bd4c279e03c689b786220f7074c06a6c1ee
sha512
2181769c52502839bcffbc8cee4662382087f8f4ed10f834693d19b05db312df95a9f7064980cda530547db68aed420c05a8b618d21638cdba01f40e2aeb52ab
ripemd-160
ab229dd11837bd2b76602b6bdfd2d9c04af0e9d8
Diameter
4037983382
Circumference
12685698928.209
Area
1.2806160365291E+19
Volume
3.447404182818E+28
Surface area
5.1224641461163E+19
Circumference
12685698928.209
Perimeter
8075966764
Area
4076327448327039481
Diagonal
2855285431.7308
Surface area
2.4457964689962E+19
Volume
8.2300712479675E+27
Space diagonal
3496996188.8714
Perimeter
6056975073
Area
1.7651015621975E+18
Altitude
1748498094.4357
Surface area
1.7651015621975E+18
Volume
9.6992319818104E+26
Height
951761810.57693