1994643921 is an odd 10-digits composite number following 1994643920
and preceding 1994643922 . In scientific notation, it is written as 1.994643921 × 10^9.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 1259775072 positive integers (up to 1994643921) that are relatively prime to 1994643921.
1994643921 has 8 divisors, whose sum is 2799500320
The reverse of 1994643921 is 1293464991
Previous prime number is 19
Is Prime? no Number parity odd Number length 10 Sum of Digits 48 Digital Root 3
Name
one billion nine hundred ninety-four million six hundred forty-three thousand nine hundred twenty-one
Scientific notation
1.994643921 × 10^9
Engineering notation
1.994643921 × 10^9
Prime Factorization
3 × 19 × 34993753
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
1994643921 Product of the distinct prime numbers
The prime factorization of 1994643921 is 3 × 19 × 34993753.
Since it has a total of 3 prime factors.
9 , 5 , 5 , 75 , 109 , 773 , 5462 , 1997 , 9480 , 72464 , 530736 , 909628 , 2039464 , 8933268 , 87982790 , 76174008 , 110907979 , 116753322 , 1376522363 , 9034221197
n×2
3989287842
n×3
5983931763
n×4
7978575684
n×5
9973219605
n÷2
997321960.5
n÷3
664881307
n÷3
498660980.25
n÷5
398928784.2
n2
3978604371582254241
n3
7.9358990238406E+27
n4
1.5829292745573E+37
n5
3.1573802548687E+46
2 √n44661.436620422
3 √n1258.7953382831
4 √n211.33252617717
5 √n72.43910494511
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
-1994643920 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 1994643921 can be divided by 8 positive divisors.
The sum of these divisors (counting 1994643921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110111000111101100111010001
3
Ternary
12011000021102001210
4
Quaternary
1312320331213101
5
Quinary
13041112101141
6
Senary
525532050333
8
Octal
16670754721
10
Decimal
1994643921
12
Duodecimal
4780039a9
16
Hexadecimal
76e3d9d1
20
Vigesimal
1b36a9g1
36
Base36
wzk53l
md5
1f310ec2714d5b4770426e37b074361b
sha1
c82f9d2653a5b414cf933914460464e6b731db86
sha256
c8704baa6f79a779b40310a257a3e82c8ce582aba0daa6eb9f9f108beead91ad
sha512
58f36c19d9d0e9f8b1207abcfd73387956191ec66c0018e3654520185b79d2aa339367b73c774dff386da72992f7b6488c271aec5655985fcac51d920f1f9990
ripemd-160
ea7fbba482926eeb6697019fa7cc1ae5be47ff61
Diameter
3989287842
Circumference
12532717377.482
Area
1.2499154265303E+19
Volume
3.3241816097237E+28
Surface area
4.9996617061212E+19
Circumference
12532717377.482
Perimeter
7978575684
Area
3978604371582254241
Diagonal
2820852485.1832
Surface area
2.3871626229494E+19
Volume
7.9358990238406E+27
Space diagonal
3454824614.1804
Perimeter
5983931763
Area
1.722786228699E+18
Altitude
1727412307.0902
Surface area
1.722786228699E+18
Volume
9.3525466909489E+26
Height
940284161.72775