19997911 is an odd 8-digits prime number following 19997910
and preceding 19997912 . In scientific notation, it is written as 1.9997911 × 10^7.
The sum of its digits is 46. It has a total of 1 prime factors and 2 positive divisors.
There are 19997910 positive integers (up to 19997911) that are relatively prime to 19997911.
19997911 has 2 divisors, whose sum is 19997912
The reverse of 19997911 is 11979991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
nineteen million nine hundred ninety-seven thousand nine hundred eleven
Scientific notation
1.9997911 × 10^7
Engineering notation
1.9997911 × 10^6
Prime Factorization
19997911
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
19997911
Product of the distinct prime numbers
The prime factorization of 19997911 is 19997911.
Since it has a total of 1 prime factors.
3 , 6 , 49 , 72 , 804 , 85 , 5696 , 1434 , 87284 , 42579 , 338877 , 497320 , 2205693 , 3720525 , 28460470 , 39409727 , 702998182 , 339100267 , 3212224825 , 5338195263
n×2
39995822
n×3
59993733
n×4
79991644
n×5
99989555
n÷2
9998955.5
n÷3
6665970.3333333
n÷3
4999477.75
n÷5
3999582.2
n2
399916444363921
n3
7.9974934618261E+21
n4
1.5993316247268E+29
n5
3.1983291490772E+36
2 √n
4471.9023916002
3 √n
271.43231063309
4 √n
66.872284181118
5 √n
28.853395332939
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
19997912
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9998956
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4471.9025034095
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998999896
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19997911 can be divided by 2 positive divisors.
The sum of these divisors (counting 19997911) is 19997912, the average is 9998956.
Base
System
Value
2
Binary
1001100010010010011010111
3
Ternary
1101121222222101
4
Quaternary
1030102103113
5
Quinary
20104413121
6
Senary
1552342531
8
Octal
114222327
10
Decimal
19997911
12
Duodecimal
6844a47
16
Hexadecimal
13124d7
20
Vigesimal
64jefb
36
Base36
bwmhj
md5
20d575f379b2458217b5ac2ad085cfc5
sha1
0b298415e4b0703c67b75e4ccaa46e3f691417e1
sha256
d0696062884ed12c9c8db67da0272a5919c6ee75e4364e5c9b3d93d215f94573
sha512
30438214467d756b55498c69ab20710323ca312089f2273575681b24914f1359d034d259a5d9883d3ffba0309e9191550b4e3f7730340313518151bcd793d7ab
ripemd-160
b3b05186ab12fa5747f6b258bf75520c49752955
Diameter
39995822
Circumference
125650580.56949
Area
1.2563745636634E+15
Volume
3.3499822275741E+22
Surface area
5.0254982546538E+15
Circumference
125650580.56949
Perimeter
79991644
Area
399916444363921
Diagonal
28281316.95533
Surface area
2399498666183526
Volume
7.9974934618261E+21
Space diagonal
34637397.897241
Perimeter
59993733
Area
1.7316890010515E+14
Altitude
17318698.94862
Surface area
1.7316890010515E+14
Volume
9.4251364322539E+20
Height
9427105.6517767