19998997 is an odd 8-digits composite number following 19998996
and preceding 19998998 . In scientific notation, it is written as 1.9998997 × 10^7.
The sum of its digits is 61. It has a total of 2 prime factors and 4 positive divisors.
There are 19960236 positive integers (up to 19998997) that are relatively prime to 19998997.
19998997 has 4 divisors, whose sum is 20037760
The reverse of 19998997 is 79989991
Previous prime number is 523
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 61
Digital Root 7
Name
nineteen million nine hundred ninety-eight thousand nine hundred ninety-seven
Scientific notation
1.9998997 × 10^7
Engineering notation
1.9998997 × 10^6
Prime Factorization
523 × 38239
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19998997
Product of the distinct prime numbers
The prime factorization of 19998997 is 523 × 38239.
Since it has a total of 2 prime factors.
3 , 2 , 32 , 67 , 247 , 577 , 1316 , 245 , 33487 , 27860 , 9006 , 25326 , 2222553 , 4002028 , 21585277 , 56643344 , 456390208 , 432264331 , 7979595741 , 8027777555
n×2
39997994
n×3
59996991
n×4
79995988
n×5
99994985
n÷2
9999498.5
n÷3
6666332.3333333
n÷3
4999749.25
n÷5
3999799.4
n2
399959881006009
n3
7.9987964603595E+21
n4
1.5996790641434E+29
n5
3.1991976804767E+36
2 √n
4472.0238147845
3 √n
271.43722398219
4 √n
66.873192048717
5 √n
28.853708706737
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
-19998996
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 19998997 can be divided by 4 positive divisors.
The sum of these divisors (counting 19998997) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010010100100010101
3
Ternary
1101122001110121
4
Quaternary
1030102210111
5
Quinary
20104431442
6
Senary
1552351541
8
Octal
114224425
10
Decimal
19998997
12
Duodecimal
68455b1
16
Hexadecimal
1312915
20
Vigesimal
64jh9h
36
Base36
bwnbp
md5
494dc837cff09d6917928653c2cf483b
sha1
93e166bdeda498cb2bf081d51e7056900b5d6098
sha256
649324de6fed4232b7628f66b3558b5e9353b350118c6273ced6b5388daec1dd
sha512
23afdf5cf3221bbb0474586c15446f72c4d4f48b728950939a0668f2c720135bcba06adf96c56d51a3a559edb290460225dca4233763f6bbfb6f16162a3bcb5f
ripemd-160
66362354a6d5785d335414035495a1a6693a6a98
Diameter
39997994
Circumference
125657404.10873
Area
1.2565110238991E+15
Volume
3.3505280263234E+22
Surface area
5.0260440955965E+15
Circumference
125657404.10873
Perimeter
79995988
Area
399959881006009
Diagonal
28282852.791259
Surface area
2399759286036054
Volume
7.9987964603595E+21
Space diagonal
34639278.904418
Perimeter
59996991
Area
1.731877087229E+14
Altitude
17319639.452209
Surface area
1.731877087229E+14
Volume
9.426672030752E+20
Height
9427617.5970863