1909707921 is an odd 10-digits composite number following 1909707920
and preceding 1909707922 . In scientific notation, it is written as 1.909707921 × 10^9.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 1157398200 positive integers (up to 1909707921) that are relatively prime to 1909707921.
1909707921 has 4 divisors, whose sum is 1911852144
The reverse of 1909707921 is 1297079091
Previous prime number is 891
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 45
Digital Root 9
Name
one billion nine hundred nine million seven hundred seven thousand nine hundred twenty-one
Scientific notation
1.909707921 × 10^9
Engineering notation
1.909707921 × 10^9
Prime Factorization
891 × 2143331
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1909707921
Product of the distinct prime numbers
The prime factorization of 1909707921 is 891 × 2143331.
Since it has a total of 2 prime factors.
5 , 9 , 32 , 60 , 828 , 573 , 1682 , 3990 , 3818 , 47312 , 170416 , 26426 , 7738091 , 1246084 , 5234596 , 19670600 , 507423908 , 719679413 , 47022622 , 3528616768
n×2
3819415842
n×3
5729123763
n×4
7638831684
n×5
9548539605
n÷2
954853960.5
n÷3
636569307
n÷3
477426980.25
n÷5
381941584.2
n2
3646984343530142241
n3
6.9646748886025E+27
n4
1.3300494801954E+37
n5
2.5400060276511E+46
2 √n
43700.205045286
3 √n
1240.6681971402
4 √n
209.0459400354
5 √n
71.811399385989
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
-1909707920
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 1909707921 can be divided by 4 positive divisors.
The sum of these divisors (counting 1909707921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110001110100111101010010010001
3
Ternary
11221002110012210000
4
Quaternary
1301310331102101
5
Quinary
12402341123141
6
Senary
513255400213
8
Octal
16164752221
10
Decimal
1909707921
12
Duodecimal
453683069
16
Hexadecimal
71d3d491
20
Vigesimal
19gfd9g1
36
Base36
vkzo29
md5
5dfbd3ba7595f502ea774ddb97db1cc3
sha1
21c48a2965eb97121fab5fcc9f1746ad034de7b0
sha256
4693003557e91ec6ca1fae5c95296a68998742c3f74a949f817d2e34da2a6684
sha512
d0f1847eb7ba103200a3c34bfde870290295e48e94a76af63b4ab671a02da8e26becff7e81afecaf5cb12fefea73f19ee84e4e113bdb8c21869f6164d740f37c
ripemd-160
555cfc1ba656e17a854a5db95e97bce24ff58504
Diameter
3819415842
Circumference
11999048750.232
Area
1.1457339221391E+19
Volume
2.91735619529E+28
Surface area
4.5829356885565E+19
Circumference
11999048750.232
Perimeter
7638831684
Area
3646984343530142241
Diagonal
2700734842.0495
Surface area
2.1881906061181E+19
Volume
6.9646748886025E+27
Space diagonal
3307711146.7887
Perimeter
5729123763
Area
1.5791905443506E+18
Altitude
1653855573.3944
Surface area
1.5791905443506E+18
Volume
8.2079480708175E+26
Height
900244947.34984