19946987 is an odd 8-digits composite number following 19946986
and preceding 19946988 . In scientific notation, it is written as 1.9946987 × 10^7.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 19932720 positive integers (up to 19946987) that are relatively prime to 19946987.
19946987 has 4 divisors, whose sum is 19961256
The reverse of 19946987 is 78964991
Previous prime number is 1571
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
nineteen million nine hundred forty-six thousand nine hundred eighty-seven
Scientific notation
1.9946987 × 10^7
Engineering notation
1.9946987 × 10^6
Prime Factorization
1571 × 12697
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19946987
Product of the distinct prime numbers
The prime factorization of 19946987 is 1571 × 12697.
Since it has a total of 2 prime factors.
4 , 8 , 85 , 19 , 204 , 904 , 3976 , 1995 , 64656 , 51061 , 68705 , 77613 , 6339175 , 3846943 , 47805575 , 20265350 , 533751090 , 116193549 , 8286662902 , 7049635906
n×2
39893974
n×3
59840961
n×4
79787948
n×5
99734935
n÷2
9973493.5
n÷3
6648995.6666667
n÷3
4986746.75
n÷5
3989397.4
n2
397882290378169
n3
7.9365528737036E+21
n4
1.5831031699658E+29
n5
3.1578138350966E+36
2 √n
4466.2049885781
3 √n
271.20171707449
4 √n
66.829671468429
5 √n
28.838685504152
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
-19946986
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 19946987 can be divided by 4 positive divisors.
The sum of these divisors (counting 19946987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100000101110111101011
3
Ternary
1101112102010022
4
Quaternary
1030011313223
5
Quinary
20101300422
6
Senary
1551311055
8
Octal
114056753
10
Decimal
19946987
12
Duodecimal
681b48b
16
Hexadecimal
1305deb
20
Vigesimal
64d797
36
Base36
bvj6z
md5
a1e2740fa9cea6006e170ec1b76839b6
sha1
2049a62185b87d5862f46143c61a880a64af8736
sha256
066fc79430e472205fa2ecc6d488b9928541c22bf726f9ff6de2e3c7723f7647
sha512
7fa58f89dd25163eaf98df5ded0a673821de676663fa592e72d0325a4d60a5ff5e8487b08c234b60d7a756a31908a0f0b95eef5accaeed0ada8f19965e1a8ba4
ripemd-160
64582bb98dc4989fc30414e636da4a3ae19e44ab
Diameter
39893974
Circumference
125330615.6409
Area
1.2499840804455E+15
Volume
3.3244554937139E+22
Surface area
4.9999363217821E+15
Circumference
125330615.6409
Perimeter
79787948
Area
397882290378169
Diagonal
28209299.54388
Surface area
2387293742269014
Volume
7.9365528737036E+21
Space diagonal
34549194.941916
Perimeter
59840961
Area
1.7228808559172E+14
Altitude
17274597.470958
Surface area
1.7228808559172E+14
Volume
9.3533172604023E+20
Height
9403099.8479599