19997639 is an odd 8-digits composite number following 19997638
and preceding 19997640 . In scientific notation, it is written as 1.9997639 × 10^7.
The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors.
There are 19982424 positive integers (up to 19997639) that are relatively prime to 19997639.
19997639 has 4 divisors, whose sum is 20012856
The reverse of 19997639 is 93679991
Previous prime number is 1453
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8
Name
nineteen million nine hundred ninety-seven thousand six hundred thirty-nine
Scientific notation
1.9997639 × 10^7
Engineering notation
1.9997639 × 10^6
Prime Factorization
1453 × 13763
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19997639
Product of the distinct prime numbers
The prime factorization of 19997639 is 1453 × 13763.
Since it has a total of 2 prime factors.
7 , 8 , 12 , 59 , 468 , 530 , 1260 , 1636 , 10010 , 115 , 62671 , 216986 , 9787466 , 5595897 , 444336 , 73446617 , 672158061 , 436206763 , 1041934440 , 8284574591
n×2
39995278
n×3
59992917
n×4
79990556
n×5
99988195
n÷2
9998819.5
n÷3
6665879.6666667
n÷3
4999409.75
n÷5
3999527.8
n2
399905565574321
n3
7.9971671344461E+21
n4
1.5992446137732E+29
n5
3.198111645893E+36
2 √n
4471.871979384
3 √n
271.43108000584
4 √n
66.872056790441
5 √n
28.853316843078
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
-19997638
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 19997639 can be divided by 4 positive divisors.
The sum of these divisors (counting 19997639) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010010001111000111
3
Ternary
1101121222121022
4
Quaternary
1030102033013
5
Quinary
20104411024
6
Senary
1552341355
8
Octal
114221707
10
Decimal
19997639
12
Duodecimal
684485b
16
Hexadecimal
13123c7
20
Vigesimal
64je1j
36
Base36
bwm9z
md5
569cbfbb9e098b1379d46d44ffdf7420
sha1
eb1e153ef14d773ca4ee00c899a761845b9a3c6d
sha256
f1b05e6beb1d30b90a7e4b8a556fa186546e2eb90b81548f251cddacda6cc69c
sha512
1ddb4a181ff19c39de0153a84f412dd51f5c1aad54a6bad9c40f1fee005eff499c252beebf1559590fff4a5610535970d7ebf30eb8bfb8970d02596e76b7265e
ripemd-160
0a37258df0abfc70dfa4047bd5226b005d123590
Diameter
39995278
Circumference
125648871.54308
Area
1.256340386938E+15
Volume
3.3498455358807E+22
Surface area
5.0253615477518E+15
Circumference
125648871.54308
Perimeter
79990556
Area
399905565574321
Diagonal
28280932.289241
Surface area
2399433393445926
Volume
7.9971671344461E+21
Space diagonal
34636926.779421
Perimeter
59992917
Area
1.7316418945107E+14
Altitude
17318463.38971
Surface area
1.7316418945107E+14
Volume
9.4247518517484E+20
Height
9426977.429747