19997647 is an odd 8-digits composite number following 19997646
and preceding 19997648 . In scientific notation, it is written as 1.9997647 × 10^7.
The sum of its digits is 52. It has a total of 3 prime factors and 6 positive divisors.
There are 19711020 positive integers (up to 19997647) that are relatively prime to 19997647.
19997647 has 6 divisors, whose sum is 20288384
The reverse of 19997647 is 74679991
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
nineteen million nine hundred ninety-seven thousand six hundred forty-seven
Scientific notation
1.9997647 × 10^7
Engineering notation
1.9997647 × 10^6
Prime Factorization
71 × 71 × 3967
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
281657
Product of the distinct prime numbers
The prime factorization of 19997647 is 71 × 71 × 3967.
Since it has a total of 3 prime factors.
1 , 3 , 1 , 33 , 400 , 976 , 8823 , 9982 , 72357 , 29764 , 283095 , 879784 , 7642343 , 2479755 , 42487996 , 29091377 , 144934273 , 884358576 , 5666062017 , 4496937572
n×2
39995294
n×3
59992941
n×4
79990588
n×5
99988235
n÷2
9998823.5
n÷3
6665882.3333333
n÷3
4999411.75
n÷5
3999529.4
n2
399905885536609
n3
7.9971767321835E+21
n4
1.5992471728682E+29
n5
3.1981180428766E+36
2 √n
4471.8728738639
3 √n
271.43111620091
4 √n
66.872063478436
5 √n
28.853319151616
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19997646
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19997647 can be divided by 6 positive divisors.
The sum of these divisors (counting 19997647) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100010010001111001111
3
Ternary
1101121222121121
4
Quaternary
1030102033033
5
Quinary
20104411042
6
Senary
1552341411
8
Octal
114221717
10
Decimal
19997647
12
Duodecimal
6844867
16
Hexadecimal
13123cf
20
Vigesimal
64je27
36
Base36
bwma7
md5
07c68ce2e066c9d3aefc2dfd5181f0d4
sha1
493aeb5e0cb6ae90385166a5f08b8bb514933c72
sha256
ed8c37bef6cec64bda73a33e50e703339004395197804e7fa64e19d1864cb1c1
sha512
2a116922bc921588a9c99dd17d104134316fd3366edd10955bd5e4c4f460ac3fd82e8a6dc5bc86f73b8d2ca29ef328121a6ca879d0ae81aec358fa67d0c72f4c
ripemd-160
08636b53f55b896da458886ce68178b6092533b1
Diameter
39995294
Circumference
125648921.80856
Area
1.2563413921291E+15
Volume
3.3498495561716E+22
Surface area
5.0253655685165E+15
Circumference
125648921.80856
Perimeter
79990588
Area
399905885536609
Diagonal
28280943.60295
Surface area
2399435313219654
Volume
7.9971767321835E+21
Space diagonal
34636940.635827
Perimeter
59992941
Area
1.7316432799881E+14
Altitude
17318470.317914
Surface area
1.7316432799881E+14
Volume
9.4247631627904E+20
Height
9426981.2009832