1990657979 is an odd 10-digits composite number following 1990657978
and preceding 1990657980 . In scientific notation, it is written as 1.990657979 × 10^9.
The sum of its digits is 62. It has a total of 2 prime factors and 4 positive divisors.
There are 1936856376 positive integers (up to 1990657979) that are relatively prime to 1990657979.
1990657979 has 4 divisors, whose sum is 2044459584
The reverse of 1990657979 is 9797560991
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 62
Digital Root 8
Name
one billion nine hundred ninety million six hundred fifty-seven thousand nine hundred seventy-nine
Scientific notation
1.990657979 × 10^9
Engineering notation
1.990657979 × 10^9
Prime Factorization
37 × 53801567
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1990657979
Product of the distinct prime numbers
The prime factorization of 1990657979 is 37 × 53801567.
Since it has a total of 2 prime factors.
1 , 3 , 37 , 12 , 697 , 153 , 8888 , 3534 , 98663 , 69409 , 63197 , 947870 , 3594609 , 2408296 , 96885317 , 87306242 , 924507369 , 225968889 , 1505224539 , 7110976489
n×2
3981315958
n×3
5971973937
n×4
7962631916
n×5
9953289895
n÷2
995328989.5
n÷3
663552659.66667
n÷3
497664494.75
n÷5
398131595.8
n2
3962719189356364441
n3
7.8884185728287E+27
n4
1.5703143373693E+37
n5
3.1259587652223E+46
2 √n
44616.790326064
3 √n
1257.9562860835
4 √n
211.2268693279
5 √n
72.410130435762
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990657978
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990657979 can be divided by 4 positive divisors.
The sum of these divisors (counting 1990657979) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110101001110000011110111011
3
Ternary
12010201202220101022
4
Quaternary
1312221300132323
5
Quinary
13034102023404
6
Senary
525310413055
8
Octal
16651603673
10
Decimal
1990657979
12
Duodecimal
47680118b
16
Hexadecimal
76a707bb
20
Vigesimal
1b21c4ij
36
Base36
wx6piz
md5
e868435705461a9eb481b297c8149bba
sha1
01485d3913d17217f1e5b6d366a51030d8f0ed0a
sha256
e5836980476bec88db7ee6e8464d3c03763d83bf7768f1dcf390184ed6fc609d
sha512
438a40eafb214cd96ec0f91aac9f21114a8d8de53ff3fa594c8d330322b05e56f4b8269577b05f97b15fd1643a9512b59abaa32276cb55e8614a39fd9409929b
ripemd-160
2eaf0c94021399fa5903dde41115d25d67395544
Diameter
3981315958
Circumference
12507672965.273
Area
1.2449249493521E+19
Volume
3.304293044912E+28
Surface area
4.9796997974085E+19
Circumference
12507672965.273
Perimeter
7962631916
Area
3962719189356364441
Diagonal
2815215511.948
Surface area
2.3776315136138E+19
Volume
7.8884185728287E+27
Space diagonal
3447920760.1204
Perimeter
5971973937
Area
1.7159077430233E+18
Altitude
1723960380.0602
Surface area
1.7159077430233E+18
Volume
9.2965904428084E+26
Height
938405170.64934