20291221 is an odd 8-digits composite number following 20291220
and preceding 20291222 . In scientific notation, it is written as 2.0291221 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 16 positive divisors.
There are 18052848 positive integers (up to 20291221) that are relatively prime to 20291221.
20291221 has 16 divisors, whose sum is 22694400
The reverse of 20291221 is 12219202
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million two hundred ninety-one thousand two hundred twenty-one
Scientific notation
2.0291221 × 10^7
Engineering notation
2.0291221 × 10^6
Prime Factorization
19 × 59 × 23 × 787
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20291221
Product of the distinct prime numbers
The prime factorization of 20291221 is 19 × 59 × 23 × 787.
Since it has a total of 4 prime factors.
10 , 2 , 63 , 79 , 269 , 493 , 6617 , 5196 , 11079 , 44788 , 804734 , 832372 , 3810981 , 9767682 , 18072413 , 19018395 , 960527458 , 293605931 , 4881343339 , 2067188744
n×2
40582442
n×3
60873663
n×4
81164884
n×5
101456105
n÷2
10145610.5
n÷3
6763740.3333333
n÷3
5072805.25
n÷5
4058244.2
n2
411733649670841
n3
8.3545784786076E+21
n4
1.6952459827127E+29
n5
3.4398610884586E+36
2 √n
4504.5777826562
3 √n
272.75291055616
4 √n
67.116151429117
5 √n
28.937541833159
1 , 19 , 23 , 59 , 437 , 787 , 1121 , 1357 , 14953 , 18101 , 25783 , 46433 , 343919 , 882227 , 1067959 , 20291221
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
-20291220
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 20291221 can be divided by 16 positive divisors.
The sum of these divisors (counting 20291221) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101011001111010010101
3
Ternary
1102011220022201
4
Quaternary
1031121322111
5
Quinary
20143304341
6
Senary
2002524501
8
Octal
115317225
10
Decimal
20291221
12
Duodecimal
6966731
16
Hexadecimal
1359e95
20
Vigesimal
66g811
36
Base36
c2wt1
md5
d10537827d87532f8f6e76db22ee5db9
sha1
1a0d939d13e807fc77f0eec47f4636add5603671
sha256
90f549631c66e28c13de5a80af8e1b0b80fe078eb6bb24939680bf8a2396f604
sha512
286556cbfa5fb637d3f6c1d694103470a01c96bc92407ec250771f2690ffd7985da8f61da34ee160844d543612530a2ee931e2751e4533a027b90740a19bf6a1
ripemd-160
5df80b7200466f6789b34d1a1d954921ae5ce866
Diameter
40582442
Circumference
127493501.65193
Area
1.2934994090416E+15
Volume
3.4995576496311E+22
Surface area
5.1739976361665E+15
Circumference
127493501.65193
Perimeter
81164884
Area
411733649670841
Diagonal
28696119.93531
Surface area
2470401898025046
Volume
8.3545784786076E+21
Space diagonal
35145425.719609
Perimeter
60873663
Area
1.7828590010392E+14
Altitude
17572712.859804
Surface area
1.7828590010392E+14
Volume
9.8459651602977E+20
Height
9565373.3117699