19997 is an odd 5-digits prime number following 19996
and preceding 19998 . In scientific notation, it is written as 1.9997 × 10^4.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 19996 positive integers (up to 19997) that are relatively prime to 19997.
19997 has 2 divisors, whose sum is 19998
The reverse of 19997 is 79991
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 5
Sum of Digits 35
Digital Root 8
Name
nineteen thousand nine hundred ninety-seven
Scientific notation
1.9997 × 10^4
Engineering notation
1.9997 × 10^3
Prime Factorization
19997
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
19997
Product of the distinct prime numbers
The prime factorization of 19997 is 19997.
Since it has a total of 1 prime factors.
4 , 1 , 77 , 38 , 610 , 337 , 795 , 5823 , 61921 , 12926 , 211395 , 908127 , 2915681 , 9891968 , 73745762 , 32435912 , 573408827 , 915144274 , 7837117997 , 3951406047
n×2
39994
n×3
59991
n×4
79988
n×5
99985
n÷2
9998.5
n÷3
6665.6666666667
n÷3
4999.25
n÷5
3999.4
n2
399880009
n3
7996400539973
n4
159904021597840081
n5
3.197600719892E+21
2 √n
141.41074923781
3 √n
27.142818889275
4 √n
11.891625172272
5 √n
7.2475791898306
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
19998
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9999
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
141.41428499271
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999899989999
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19997 can be divided by 2 positive divisors.
The sum of these divisors (counting 19997) is 19998, the average is 9999.
Base
System
Value
2
Binary
100111000011101
3
Ternary
1000102122
4
Quaternary
10320131
5
Quinary
1114442
6
Senary
232325
8
Octal
47035
10
Decimal
19997
12
Duodecimal
b6a5
16
Hexadecimal
4e1d
20
Vigesimal
29jh
36
Base36
ffh
md5
4372e2ba2d04ea409b6d4a391641f938
sha1
0dbc9605da894f26ffaf78a36b276e2d0b0cfccc
sha256
c6d8dd466749eedfcf647439ffd65b37cb8c74655f09ed9ed667e4fbc7a0fb56
sha512
85fb608aabd8d26989fbab993799ae6c72a3d9b7e6ca345b2bdf9f685745db0c76262ca4d4c27c0c410378407f1b8db0d0cc4c5f4086563858ef81897a3ac3c0
ripemd-160
67e48220faa3006abd30778e98e7d8c1ad5416dc
Diameter
39994
Circumference
125644.85658767
Area
1256260098.5918
Volume
33495244255388
Surface area
5025040394.3673
Circumference
125644.85658767
Perimeter
79988
Area
399880009
Diagonal
28280.028606775
Surface area
2399280054
Volume
7996400539973
Space diagonal
34635.819998955
Perimeter
59991
Area
173153123.12977
Altitude
17317.909999477
Surface area
173153123.12977
Volume
942384841149.78
Height
9426.6762022583