20451686 is an even 8-digits composite number following 20451685
and preceding 20451687 . In scientific notation, it is written as 2.0451686 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 10225842 positive integers (up to 20451686) that are relatively prime to 20451686.
20451686 has 4 divisors, whose sum is 30677532
The reverse of 20451686 is 68615402
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million four hundred fifty-one thousand six hundred eighty-six
Scientific notation
2.0451686 × 10^7
Engineering notation
2.0451686 × 10^6
Prime Factorization
2 × 10225843
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20451686
Product of the distinct prime numbers
The prime factorization of 20451686 is 2 × 10225843.
Since it has a total of 2 prime factors.
3 , 5 , 48 , 16 , 841 , 646 , 3551 , 6189 , 59900 , 27946 , 568878 , 638568 , 5088836 , 5555419 , 28511575 , 42785393 , 148453519 , 456887289 , 9290508391 , 6025297673
n×2
40903372
n×3
61355058
n×4
81806744
n×5
102258430
n÷2
10225843
n÷3
6817228.6666667
n÷3
5112921.5
n÷5
4090337.2
n2
418271460242596
n3
8.5543565676431E+21
n4
1.7495101445347E+29
n5
3.5780432129839E+36
2 √n
4522.3540330231
3 √n
273.47000931137
4 √n
67.24845004179
5 √n
28.983165934092
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
-20451685
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 20451686 can be divided by 4 positive divisors.
The sum of these divisors (counting 20451686) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110000001000101100110
3
Ternary
1102111001102212
4
Quaternary
1032001011212
5
Quinary
20213423221
6
Senary
2010203422
8
Octal
116010546
10
Decimal
20451686
12
Duodecimal
6a23572
16
Hexadecimal
1381166
20
Vigesimal
67g946
36
Base36
c6cme
md5
4c5dd64e134dcc545910806c8bdf81c1
sha1
b9ad4845c356ea67b8e521fabb3d7de32370b352
sha256
a14a291b4aaac242877868c161e914f5db1b17fbe3f86b869d8d22e064d08712
sha512
3a61b22051e4a372a12f597db20294ccfaa195aa9e4595fcaa067036d54f53d9c84256fc0e2b45e070d9a325f2b301cdd1eeaa29c5a868841a00e1a5c75cf912
ripemd-160
c99224a66bb8136e5e39626667b19f003978c0ba
Diameter
40903372
Circumference
128501732.98225
Area
1.3140385467044E+15
Volume
3.5832404998793E+22
Surface area
5.2561541868177E+15
Circumference
128501732.98225
Perimeter
81806744
Area
418271460242596
Diagonal
28923051.714596
Surface area
2509628761455576
Volume
8.5543565676431E+21
Space diagonal
35423359.252445
Perimeter
61355058
Area
1.8111685512405E+14
Altitude
17711679.626223
Surface area
1.8111685512405E+14
Volume
1.0081405896113E+21
Height
9641017.2381987