1991028298 is an even 10-digits composite number following 1991028297
and preceding 1991028299 . In scientific notation, it is written as 1.991028298 × 10^9.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 853297836 positive integers (up to 1991028298) that are relatively prime to 1991028298.
1991028298 has 8 divisors, whose sum is 3413191392
The reverse of 1991028298 is 8928201991
Previous prime number is 7
Is Prime? no Number parity even Number length 10 Sum of Digits 49 Digital Root 4
Name
one billion nine hundred ninety-one million twenty-eight thousand two hundred ninety-eight
Scientific notation
1.991028298 × 10^9
Engineering notation
1.991028298 × 10^9
Prime Factorization
2 × 7 × 142216307
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1991028298 Product of the distinct prime numbers
The prime factorization of 1991028298 is 2 × 7 × 142216307.
Since it has a total of 3 prime factors.
5 , 9 , 30 , 81 , 375 , 656 , 1095 , 2680 , 94206 , 51563 , 31440 , 133409 , 1649673 , 9221979 , 55831022 , 16914481 , 559282928 , 331845137 , 3225454374 , 9175021369
n×2
3982056596
n×3
5973084894
n×4
7964113192
n×5
9955141490
n÷2
995514149
n÷3
663676099.33333
n÷3
497757074.5
n÷5
398205659.6
n2
3964193683436776804
n3
7.8928218024755E+27
n4
1.57148315598E+37
n5
3.1288674333865E+46
2 √n44620.940129047
3 √n1258.0342864624
4 √n211.23669219396
5 √n72.412824304048
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
-1991028297 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 1991028298 can be divided by 8 positive divisors.
The sum of these divisors (counting 1991028298) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101011001010111001001010
3
Ternary
12010202110201100211
4
Quaternary
1312223022321022
5
Quinary
13034200401143
6
Senary
525322351334
8
Octal
16653127112
10
Decimal
1991028298
12
Duodecimal
47695b54a
16
Hexadecimal
76acae4a
20
Vigesimal
1b23iaei
36
Base36
wxen9m
md5
9303c9ad88274cbfb8a1408d28bc00fa
sha1
4ea4a262a0663680863125e7c0cdde2476417b6a
sha256
288653a0cecff08d1fa88eecc7a44eccda96253de9e85b130d3843bd09e91c6f
sha512
c868d3ec2d9dd6942bae275c018370d78c436b7198f0aef37ee6af82805fc257ff013e0d94cda4a6f96f6a3dfc9a7add06c2086c55bf9af15244be05d693df77
ripemd-160
06552f31535bf0c6604ff1b9d8d8071537bee156
Diameter
3982056596
Circumference
12509999748.172
Area
1.2453881753292E+19
Volume
3.3061374654334E+28
Surface area
4.9815527013168E+19
Circumference
12509999748.172
Perimeter
7964113192
Area
3964193683436776804
Diagonal
2815739222.1002
Surface area
2.3785162100621E+19
Volume
7.8928218024755E+27
Space diagonal
3448562171.4434
Perimeter
5973084894
Area
1.716546217689E+18
Altitude
1724281085.7217
Surface area
1.716546217689E+18
Volume
9.3017796987124E+26
Height
938579740.70007