19989881 is an odd 8-digits composite number following 19989880
and preceding 19989882 . In scientific notation, it is written as 1.9989881 × 10^7.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 18937764 positive integers (up to 19989881) that are relatively prime to 19989881.
19989881 has 4 divisors, whose sum is 21042000
The reverse of 19989881 is 18898991
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
nineteen million nine hundred eighty-nine thousand eight hundred eighty-one
Scientific notation
1.9989881 × 10^7
Engineering notation
1.9989881 × 10^6
Prime Factorization
19 × 1052099
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19989881
Product of the distinct prime numbers
The prime factorization of 19989881 is 19 × 1052099.
Since it has a total of 2 prime factors.
9 , 9 , 94 , 30 , 669 , 844 , 1832 , 4851 , 17540 , 22694 , 442350 , 620620 , 747179 , 3713581 , 79065220 , 63312347 , 673386979 , 311376090 , 2150087317 , 1870934850
n×2
39979762
n×3
59969643
n×4
79959524
n×5
99949405
n÷2
9994940.5
n÷3
6663293.6666667
n÷3
4997470.25
n÷5
3997976.2
n2
399595342394161
n3
7.9878633426135E+21
n4
1.5967643766311E+29
n5
3.1919129873894E+36
2 √n
4471.00447327
3 √n
271.39597528365
4 √n
66.865570163351
5 √n
28.851077790999
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
-19989880
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 19989881 can be divided by 4 positive divisors.
The sum of these divisors (counting 19989881) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010000010101111001
3
Ternary
1101121120221222
4
Quaternary
1030100111321
5
Quinary
20104134011
6
Senary
1552241425
8
Octal
114202571
10
Decimal
19989881
12
Duodecimal
6840275
16
Hexadecimal
1310579
20
Vigesimal
64iee1
36
Base36
bwgah
md5
9db4167408057a33bc25de9fe9cc8782
sha1
a42c1500c38089d3da1662e051ef193651416c34
sha256
6d09643d90e95410f0a7f5ce910e13f985cdd2be95a196287203d25ff6a82632
sha512
00da524044ff4cf0bbb1c665e860cd5ec450a6a54d77e483cf3ebd817afb4b457a371f21164374b45f3e2ea53b3d48767a9647b101f532c8ecf9582d3abaa32c
ripemd-160
37f9b8de531df91f98d60ef99a1e56e89038152c
Diameter
39979762
Circumference
125600126.59147
Area
1.2553657920742E+15
Volume
3.3459483726712E+22
Surface area
5.0214631682968E+15
Circumference
125600126.59147
Perimeter
79959524
Area
399595342394161
Diagonal
28269960.820424
Surface area
2397572054364966
Volume
7.9878633426135E+21
Space diagonal
34623489.529256
Perimeter
59969643
Area
1.7302985887364E+14
Altitude
17311744.764628
Surface area
1.7302985887364E+14
Volume
9.4137872279225E+20
Height
9423320.2734748