20639997 is an odd 8-digits composite number following 20639996
and preceding 20639998 . In scientific notation, it is written as 2.0639997 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 11794248 positive integers (up to 20639997) that are relatively prime to 20639997.
20639997 has 8 divisors, whose sum is 28830560
The reverse of 20639997 is 79993602
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million six hundred thirty-nine thousand nine hundred ninety-seven
Scientific notation
2.0639997 × 10^7
Engineering notation
2.0639997 × 10^6
Prime Factorization
21 × 3 × 327619
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20639997
Product of the distinct prime numbers
The prime factorization of 20639997 is 21 × 3 × 327619.
Since it has a total of 3 prime factors.
10 , 3 , 50 , 4 , 791 , 362 , 299 , 595 , 6514 , 14876 , 949258 , 36390 , 358895 , 5072212 , 71476307 , 64182922 , 170585603 , 705655376 , 9500337959 , 402635597
n×2
41279994
n×3
61919991
n×4
82559988
n×5
103199985
n÷2
10319998.5
n÷3
6879999
n÷3
5159999.25
n÷5
4127999.4
n2
426009476160009
n3
8.7928343099142E+21
n4
1.8148407377813E+29
n5
3.7458307383283E+36
2 √n
4543.1263464711
3 √n
274.30678072478
4 √n
67.402717649002
5 √n
29.036343533428
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
-20639996
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 20639997 can be divided by 8 positive divisors.
The sum of these divisors (counting 20639997) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110101111000011111101
3
Ternary
1102211121202100
4
Quaternary
1032233003331
5
Quinary
20240434442
6
Senary
2014215313
8
Octal
116570375
10
Decimal
20639997
12
Duodecimal
6ab4539
16
Hexadecimal
13af0fd
20
Vigesimal
68jjjh
36
Base36
cadx9
md5
1c65f028694ffcfb33b2e9b43e3fb326
sha1
7e2cb5e942cdd0f0c2b37fbfb842ef804c554f33
sha256
60134155b1610da091cfd37a0fab846678ba90ae09b37d8b484fdb1bca3375af
sha512
10de7ad2d17a0fe89e76d57e1e5d64da0b7d15c8323eeb15458815c8ef708a758cb5407a5c3a91c1c64871b55d4de385f45843633ce955d24fc2b60eb0ac1fa2
ripemd-160
517b4a0874e41b2ff9846d1041ca4280033a59c4
Diameter
41279994
Circumference
129684925.89063
Area
1.3383482406639E+15
Volume
3.6831338229678E+22
Surface area
5.3533929626557E+15
Circumference
129684925.89063
Perimeter
82559988
Area
426009476160009
Diagonal
29189363.68474
Surface area
2556056856960054
Volume
8.7928343099142E+21
Space diagonal
35749523.472069
Perimeter
61919991
Area
1.8446751430373E+14
Altitude
17874761.736035
Surface area
1.8446751430373E+14
Volume
1.036245461065E+21
Height
9729787.8949133