1978889689 is an odd 10-digits composite number following 1978889688
and preceding 1978889690 . In scientific notation, it is written as 1.978889689 × 10^9.
The sum of its digits is 73. It has a total of 3 prime factors and 8 positive divisors.
There are 1662051600 positive integers (up to 1978889689) that are relatively prime to 1978889689.
1978889689 has 8 divisors, whose sum is 1993582080
The reverse of 1978889689 is 9869888791
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 73
Digital Root 1
Name
one billion nine hundred seventy-eight million eight hundred eighty-nine thousand six hundred eighty-nine
Scientific notation
1.978889689 × 10^9
Engineering notation
1.978889689 × 10^9
Prime Factorization
469 × 191 × 22091
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1978889689
Product of the distinct prime numbers
The prime factorization of 1978889689 is 469 × 191 × 22091.
Since it has a total of 3 prime factors.
3 , 3 , 44 , 84 , 278 , 261 , 9716 , 6464 , 88488 , 7082 , 951916 , 823385 , 1909367 , 6854975 , 96125492 , 3928942 , 420922296 , 225995011 , 5167193077 , 9317691106
n×2
3957779378
n×3
5936669067
n×4
7915558756
n×5
9894448445
n÷2
989444844.5
n÷3
659629896.33333
n÷3
494722422.25
n÷5
395777937.8
n2
3916004401230516721
n3
7.7493407316737E+27
n4
1.5335090470457E+37
n5
3.0346452411869E+46
2 √n
44484.712980978
3 √n
1255.4724736493
4 √n
210.91399427487
5 √n
72.32431301592
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
-1978889688
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 1978889689 can be divided by 8 positive divisors.
The sum of these divisors (counting 1978889689) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110101111100110111010111011001
3
Ternary
12002220122000022201
4
Quaternary
1311330313113121
5
Quinary
13023043432224
6
Senary
524210250201
8
Octal
16574672731
10
Decimal
1978889689
12
Duodecimal
472886961
16
Hexadecimal
75f375d9
20
Vigesimal
1ai81449
36
Base36
wq6h21
md5
4b6548131dfd10ce864a9eaff8ceb80c
sha1
bae4b4e2b9a874086f41dcbebbd2f83a7b107ab0
sha256
c580aadf2b148fef9f8a4a819cf3b37169073a37395f55808ea7eb8bc50346aa
sha512
648658b1f947330ba8560c542f1093e1e4d77810d03863c06089a65e38f814684bfdafd2c691463d2e96123b9bd2f700b11d90157ebdb5c06afcd9506dd5be92
ripemd-160
c28ea4abd5920d615d1b3d225bd82135cd3b4b3e
Diameter
3957779378
Circumference
12433730618.454
Area
1.2302490658331E+19
Volume
3.2460362550387E+28
Surface area
4.9209962633324E+19
Circumference
12433730618.454
Perimeter
7915558756
Area
3916004401230516721
Diagonal
2798572636.6241
Surface area
2.3496026407383E+19
Volume
7.7493407316737E+27
Space diagonal
3427537483.9222
Perimeter
5936669067
Area
1.6956796463986E+18
Altitude
1713768741.9611
Surface area
1.6956796463986E+18
Volume
9.1326856351526E+26
Height
932857545.54136