1028821491 is an odd 10-digits composite number following 1028821490
and preceding 1028821492 . In scientific notation, it is written as 1.028821491 × 10^9.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 685748016 positive integers (up to 1028821491) that are relatively prime to 1028821491.
1028821491 has 12 divisors, whose sum is 1486363632
The reverse of 1028821491 is 1941288201
Previous prime number is 8167
Is Prime? no Number parity odd Number length 10 Sum of Digits 36 Digital Root 9
Name
one billion twenty-eight million eight hundred twenty-one thousand four hundred ninety-one
Scientific notation
1.028821491 × 10^9
Engineering notation
1.028821491 × 10^9
Prime Factorization
3 × 3 × 8167 × 13997
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
342940497 Product of the distinct prime numbers
The prime factorization of 1028821491 is 3 × 3 × 8167 × 13997.
Since it has a total of 4 prime factors.
5 , 9 , 68 , 36 , 490 , 416 , 1226 , 7231 , 37177 , 36737 , 777662 , 388265 , 5092296 , 8539193 , 24636777 , 73130600 , 974270016 , 248988364 , 6149753655 , 5190003285
n×2
2057642982
n×3
3086464473
n×4
4115285964
n×5
5144107455
n÷2
514410745.5
n÷3
342940497
n÷3
257205372.75
n÷5
205764298.2
n2
1058473660343463081
n3
1.0889804494188E+27
n4
1.1203664896409E+36
n5
1.1526571223388E+45
2 √n32075.247325625
3 √n1009.5163161273
4 √n179.09563737184
5 √n63.455315172941
1 , 3 , 9 , 8167 , 13997 , 24501 , 41991 , 73503 , 125973 , 114313499 , 342940497 , 1028821491
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1028821490 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1028821491 can be divided by 12 positive divisors.
The sum of these divisors (counting 1028821491) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101010100101001000111110011
3
Ternary
2122200220112202200
4
Quaternary
331110221013303
5
Quinary
4101334241431
6
Senary
250031114243
8
Octal
7524510763
10
Decimal
1028821491
12
Duodecimal
248672983
16
Hexadecimal
3d5291f3
20
Vigesimal
g1a2deb
36
Base36
h0j7qr
md5
bbb6b1ac8b20b9bf6bea610d797476cc
sha1
428ce21cdd29132be2c7a42e36a2c0f331a8621c
sha256
7eac1e9b0c49731c87dee9bf9cbf3d0a86bf60ae228150f9b695d763eee3ad0c
sha512
2fa4d72c1a1f503a44c88c0b9c45da659857b4f8ffba161681b1b5905322796df67a40f6bd316c2f93a3cffa387418fe7784aac51b5551b9aeecceaaf81652ac
ripemd-160
9832ec0a4200711ada8624869fa11dd0a5be1a20
Diameter
2057642982
Circumference
6464276075.9618
Area
3.3252930753533E+18
Volume
4.5615106397293E+27
Surface area
1.3301172301413E+19
Circumference
6464276075.9618
Perimeter
4115285964
Area
1058473660343463081
Diagonal
1454973305.8331
Surface area
6350841962060778486
Volume
1.0889804494188E+27
Space diagonal
1781971094.3308
Perimeter
3086464473
Area
4.5833253954707E+17
Altitude
890985547.16538
Surface area
4.5833253954707E+17
Volume
1.2833757672727E+26
Height
484991101.94437