19997871 is an odd 8-digits composite number following 19997870
and preceding 19997872 . In scientific notation, it is written as 1.9997871 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 12971520 positive integers (up to 19997871) that are relatively prime to 19997871.
19997871 has 8 divisors, whose sum is 27384624
The reverse of 19997871 is 17879991
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
nineteen million nine hundred ninety-seven thousand eight hundred seventy-one
Scientific notation
1.9997871 × 10^7
Engineering notation
1.9997871 × 10^6
Prime Factorization
3 × 37 × 180161
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19997871
Product of the distinct prime numbers
The prime factorization of 19997871 is 3 × 37 × 180161.
Since it has a total of 3 prime factors.
6 , 2 , 40 , 85 , 647 , 462 , 6172 , 5432 , 97833 , 51758 , 872697 , 536111 , 907198 , 3430207 , 3307520 , 27617286 , 60841725 , 741177959 , 1951904617 , 2620257577
n×2
39995742
n×3
59993613
n×4
79991484
n×5
99989355
n÷2
9998935.5
n÷3
6665957
n÷3
4999467.75
n÷5
3999574.2
n2
399914844532641
n3
7.9974454719488E+21
n4
1.5993188287757E+29
n5
3.1982971625727E+36
2 √n
4471.8979192285
3 √n
271.4321296592
4 √n
66.872250741458
5 √n
28.853383790366
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
-19997870
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 19997871 can be divided by 8 positive divisors.
The sum of these divisors (counting 19997871) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010010010010101111
3
Ternary
1101121222220220
4
Quaternary
1030102102233
5
Quinary
20104412441
6
Senary
1552342423
8
Octal
114222257
10
Decimal
19997871
12
Duodecimal
6844a13
16
Hexadecimal
13124af
20
Vigesimal
64jedb
36
Base36
bwmgf
md5
8f0c878ba5c1f7a3a63b8eb46f5fad70
sha1
e940ad736ae14e408f029f8cfec92ededc8bc05a
sha256
fc0a031b35b6fcaa20d63023fce82807e25abf8fe29df1546901d7cadbae62e7
sha512
695a844c412c464511529ee27b994cfd1342fe7fcea9480c2fd51d91327667c8df7b7b94bce01ebb568dd3f4ed4fd52658ae53c8525a8d381f586fb17bce1ca6
ripemd-160
5a04dd36ee0b6c81a6bf0c636f553675172fb8ff
Diameter
39995742
Circumference
125650329.24207
Area
1.2563695376452E+15
Volume
3.3499621256212E+22
Surface area
5.025478150581E+15
Circumference
125650329.24207
Perimeter
79991484
Area
399914844532641
Diagonal
28281260.386788
Surface area
2399489067195846
Volume
7.9974454719488E+21
Space diagonal
34637328.615208
Perimeter
59993613
Area
1.7316820735789E+14
Altitude
17318664.307604
Surface area
1.7316820735789E+14
Volume
9.4250798756411E+20
Height
9427086.7955959