1900805921 is an odd 10-digits composite number following 1900805920
and preceding 1900805922 . In scientific notation, it is written as 1.900805921 × 10^9.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 1491975936 positive integers (up to 1900805921) that are relatively prime to 1900805921.
1900805921 has 16 divisors, whose sum is 2362306176
The reverse of 1900805921 is 1295080091
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 35
Digital Root 8
Name
one billion nine hundred million eight hundred five thousand nine hundred twenty-one
Scientific notation
1.900805921 × 10^9
Engineering notation
1.900805921 × 10^9
Prime Factorization
17 × 7 × 37 × 431707
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1900805921
Product of the distinct prime numbers
The prime factorization of 1900805921 is 17 × 7 × 37 × 431707.
Since it has a total of 4 prime factors.
6 , 10 , 52 , 58 , 885 , 580 , 2132 , 7928 , 67394 , 83946 , 345449 , 243464 , 1150825 , 8758073 , 82334735 , 4660796 , 83575047 , 846222166 , 1386456153 , 1381384064
n×2
3801611842
n×3
5702417763
n×4
7603223684
n×5
9504029605
n÷2
950402960.5
n÷3
633601973.66667
n÷3
475201480.25
n÷5
380161184.2
n2
3613063149308658241
n3
6.8677318271528E+27
n4
1.3054225320892E+37
n5
2.481354878402E+46
2 √n
43598.233003185
3 √n
1238.7374247691
4 √n
208.80189894535
5 √n
71.744325214617
1 , 7 , 17 , 37 , 119 , 259 , 629 , 4403 , 431707 , 3021949 , 7339019 , 15973159 , 51373133 , 111812113 , 271543703 , 1900805921
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1900805920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1900805921 can be divided by 16 positive divisors.
The sum of these divisors (counting 1900805921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110001010010111111111100100001
3
Ternary
11220110200221112022
4
Quaternary
1301102333330201
5
Quinary
12343101242141
6
Senary
512340511225
8
Octal
16122777441
10
Decimal
1900805921
12
Duodecimal
4506ab515
16
Hexadecimal
714bff21
20
Vigesimal
19e00eg1
36
Base36
vfov8h
md5
c0f69f7928a40f920252a708c00bdd63
sha1
858ef5998d3bd09036afcf829e64b2bbbc75551d
sha256
906910407d937ec1c215b1c552d366d463d2252a955419b84faa0c47bbe39768
sha512
c9e4eeb7c3a9d4a683acfdf100f5de2bf5136edf1a94f2581e4ac1d1b854667b0f96737b860875344decb55c0113eb6da070245c2f942d5c158c990913308ea8
ripemd-160
e8c73fb5a9b50cca3434aaa9f3aaa05ce0693e0e
Diameter
3801611842
Circumference
11943115834.627
Area
1.1350772646824E+19
Volume
2.8767487806677E+28
Surface area
4.5403090587296E+19
Circumference
11943115834.627
Perimeter
7603223684
Area
3613063149308658241
Diagonal
2688145512.9173
Surface area
2.1678378895852E+19
Volume
6.8677318271528E+27
Space diagonal
3292292430.4998
Perimeter
5702417763
Area
1.5645022363894E+18
Altitude
1646146215.2499
Surface area
1.5645022363894E+18
Volume
8.0936995772507E+26
Height
896048504.30576