19990187 is an odd 8-digits composite number following 19990186
and preceding 19990188 . In scientific notation, it is written as 1.9990187 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 16875936 positive integers (up to 19990187) that are relatively prime to 19990187.
19990187 has 8 divisors, whose sum is 20706000
The reverse of 19990187 is 78109991
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
nineteen million nine hundred ninety thousand one hundred eighty-seven
Scientific notation
1.9990187 × 10^7
Engineering notation
1.9990187 × 10^6
Prime Factorization
49 × 67 × 6089
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19990187
Product of the distinct prime numbers
The prime factorization of 19990187 is 49 × 67 × 6089.
Since it has a total of 3 prime factors.
9 , 10 , 79 , 32 , 573 , 311 , 6474 , 5670 , 25115 , 77650 , 346601 , 623996 , 1540892 , 888848 , 21566332 , 94122096 , 476546055 , 75717336 , 3278949252 , 3844771053
n×2
39980374
n×3
59970561
n×4
79960748
n×5
99950935
n÷2
9995093.5
n÷3
6663395.6666667
n÷3
4997546.75
n÷5
3998037.4
n2
399607576294969
n3
7.9882301767532E+21
n4
1.5968621503234E+29
n5
3.1921572998187E+36
2 √n
4471.0386936371
3 √n
271.3973600967
4 √n
66.865826052155
5 √n
28.851166119446
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
-19990186
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 19990187 can be divided by 8 positive divisors.
The sum of these divisors (counting 19990187) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010000011010101011
3
Ternary
1101121121101022
4
Quaternary
1030100122223
5
Quinary
20104141222
6
Senary
1552243055
8
Octal
114203253
10
Decimal
19990187
12
Duodecimal
684048b
16
Hexadecimal
13106ab
20
Vigesimal
64if97
36
Base36
bwgiz
md5
b5500c01bbdcf184a2b80b6a06280618
sha1
801e0888e5131591f69f9317d9af40aff6b2a780
sha256
4140b6334845770e301cdee9f2d400a50c8f66ec137e20c496f0530c9ece1767
sha512
39a0a12cf98f54da8ba6c8b9670ac98160c59b8e73b5167094bbc86f004db4c16072500a4a3ee4e1bfb1d9fec72f4b9ee3e9880b0b746479e9a66a1a807ba638
ripemd-160
95acb10018ac9cb01d2073dbdd08af76a10465a7
Diameter
39980374
Circumference
125602049.24617
Area
1.2554042260071E+15
Volume
3.3461020317963E+22
Surface area
5.0216169040284E+15
Circumference
125602049.24617
Perimeter
79960748
Area
399607576294969
Diagonal
28270393.569774
Surface area
2397645457769814
Volume
7.9882301767532E+21
Space diagonal
34624019.536803
Perimeter
59970561
Area
1.7303515630809E+14
Altitude
17312009.768401
Surface area
1.7303515630809E+14
Volume
9.414219546102E+20
Height
9423464.5232581