1978889739 is an odd 10-digits composite number following 1978889738
and preceding 1978889740 . In scientific notation, it is written as 1.978889739 × 10^9.
The sum of its digits is 69. It has a total of 3 prime factors and 8 positive divisors.
There are 1291190376 positive integers (up to 1978889739) that are relatively prime to 1978889739.
1978889739 has 8 divisors, whose sum is 2694658560
The reverse of 1978889739 is 9379888791
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 69
Digital Root 6
Name
one billion nine hundred seventy-eight million eight hundred eighty-nine thousand seven hundred thirty-nine
Scientific notation
1.978889739 × 10^9
Engineering notation
1.978889739 × 10^9
Prime Factorization
3 × 47 × 14034679
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1978889739
Product of the distinct prime numbers
The prime factorization of 1978889739 is 3 × 47 × 14034679.
Since it has a total of 3 prime factors.
5 , 4 , 28 , 9 , 630 , 841 , 1242 , 8888 , 53465 , 57994 , 894283 , 656910 , 3747572 , 2142926 , 32260620 , 8464226 , 274704620 , 846818848 , 1835453650 , 9694193857
n×2
3957779478
n×3
5936669217
n×4
7915558956
n×5
9894448695
n÷2
989444869.5
n÷3
659629913
n÷3
494722434.75
n÷5
395777947.8
n2
3916004599119488121
n3
7.7493413190744E+27
n4
1.5335092020325E+37
n5
3.0346456245642E+46
2 √n
44484.713542969
3 √n
1255.4724842232
4 √n
210.91399560714
5 √n
72.324313381399
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
-1978889738
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 1978889739 can be divided by 8 positive divisors.
The sum of these divisors (counting 1978889739) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110101111100110111011000001011
3
Ternary
12002220122000101120
4
Quaternary
1311330313120023
5
Quinary
13023043432424
6
Senary
524210250323
8
Octal
16574673013
10
Decimal
1978889739
12
Duodecimal
4728869a3
16
Hexadecimal
75f3760b
20
Vigesimal
1ai8146j
36
Base36
wq6h3f
md5
961026959f9f19d02c5b76302708cb7d
sha1
08b86ff415427e097356e4fa93dbe08c45beb287
sha256
61555b3a257b19631fd97ca19e5051820f11a96df9d78e8e768cf8bb7f25e4f0
sha512
6bf972f8a719e3dccc691131376520629ec2c842706689cf4813318f43aa05ab84abe4f846ca6de0c7853fb4b3bf9cbb2ec89ec54ed3e94388a3050f69366a4b
ripemd-160
76f014877c617416a6cf7d77072447304043725f
Diameter
3957779478
Circumference
12433730932.613
Area
1.2302491280018E+19
Volume
3.2460365010885E+28
Surface area
4.9209965120071E+19
Circumference
12433730932.613
Perimeter
7915558956
Area
3916004599119488121
Diagonal
2798572707.3348
Surface area
2.3496027594717E+19
Volume
7.7493413190744E+27
Space diagonal
3427537570.5247
Perimeter
5936669217
Area
1.6956797320871E+18
Altitude
1713768785.2624
Surface area
1.6956797320871E+18
Volume
9.132686327411E+26
Height
932857569.11158