20021687 is an odd 8-digits composite number following 20021686
and preceding 20021688 . In scientific notation, it is written as 2.0021687 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 15609888 positive integers (up to 20021687) that are relatively prime to 20021687.
20021687 has 16 divisors, whose sum is 22032000
The reverse of 20021687 is 78612002
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million twenty-one thousand six hundred eighty-seven
Scientific notation
2.0021687 × 10^7
Engineering notation
2.0021687 × 10^6
Prime Factorization
203 × 19 × 29 × 179
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20021687
Product of the distinct prime numbers
The prime factorization of 20021687 is 203 × 19 × 29 × 179.
Since it has a total of 4 prime factors.
5 , 2 , 25 , 92 , 210 , 579 , 7654 , 7548 , 50902 , 30750 , 571020 , 997322 , 3712631 , 812781 , 84532702 , 80853379 , 24099109 , 482557036 , 1327739271 , 4607768815
n×2
40043374
n×3
60065061
n×4
80086748
n×5
100108435
n÷2
10010843.5
n÷3
6673895.6666667
n÷3
5005421.75
n÷5
4004337.4
n2
400867950325969
n3
8.0260526297581E+21
n4
1.6069511359854E+29
n5
3.2173872668995E+36
2 √n
4474.5599783666
3 √n
271.53983884278
4 √n
66.892151844343
5 √n
28.860252972324
1 , 19 , 29 , 179 , 203 , 551 , 3401 , 3857 , 5191 , 5887 , 36337 , 98629 , 111853 , 690403 , 1053773 , 20021687
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20021686
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20021687 can be divided by 16 positive divisors.
The sum of these divisors (counting 20021687) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100011000000110110111
3
Ternary
1101200012120222
4
Quaternary
1030120012313
5
Quinary
20111143222
6
Senary
1553044555
8
Octal
114300667
10
Decimal
20021687
12
Duodecimal
685675b
16
Hexadecimal
13181b7
20
Vigesimal
652e47
36
Base36
bx4tz
md5
a6a5ca6c9632f867951c2a9fb0caacdc
sha1
84840d52260358d96634149afd84645c4244d56e
sha256
504fdf168fcca5a42b5d0e37bbbfcfb24b43fc99f92674e4aeaebf00b8582501
sha512
29ac653f7704015ba1681a73cf9d0512efda25aa75a0567268ec63f45c624b5c3377f07f8e5250e37a9b7cd082dadcaa8c8947be8842906f2b51eceed35b0e83
ripemd-160
41ab61ecc9e1195000979c1f5fac038557bc7ece
Diameter
40043374
Circumference
125799969.58335
Area
1.2593638078037E+15
Volume
3.3619450638631E+22
Surface area
5.0374552312146E+15
Circumference
125799969.58335
Perimeter
80086748
Area
400867950325969
Diagonal
28314941.296989
Surface area
2405207701955814
Volume
8.0260526297581E+21
Space diagonal
34678579.137241
Perimeter
60065061
Area
1.7358091427264E+14
Altitude
17339289.568621
Surface area
1.7358091427264E+14
Volume
9.4587937344368E+20
Height
9438313.765663