20821402 is an even 8-digits composite number following 20821401
and preceding 20821403 . In scientific notation, it is written as 2.0821402 × 10^7.
The sum of its digits is 19. It has a total of 4 prime factors and 16 positive divisors.
There are 8854560 positive integers (up to 20821402) that are relatively prime to 20821402.
20821402 has 16 divisors, whose sum is 35969472
The reverse of 20821402 is 20412802
Previous prime number is 131
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million eight hundred twenty-one thousand four hundred two
Scientific notation
2.0821402 × 10^7
Engineering notation
2.0821402 × 10^6
Prime Factorization
2 × 7 × 131 × 11353
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20821402
Product of the distinct prime numbers
The prime factorization of 20821402 is 2 × 7 × 131 × 11353.
Since it has a total of 4 prime factors.
3 , 10 , 11 , 88 , 794 , 877 , 399 , 5757 , 35017 , 42718 , 993359 , 311155 , 18117 , 5473542 , 17979260 , 77415344 , 157695918 , 815564483 , 7429649123 , 6463056737
n×2
41642804
n×3
62464206
n×4
83285608
n×5
104107010
n÷2
10410701
n÷3
6940467.3333333
n÷3
5205350.5
n÷5
4164280.4
n2
433530781245604
n3
9.0267186756888E+21
n4
1.8794893828742E+29
n5
3.9133603995556E+36
2 √n
4563.0474466085
3 √n
275.1080655174
4 √n
67.550332690583
5 √n
29.08720514057
1 , 2 , 7 , 14 , 131 , 262 , 917 , 1834 , 11353 , 22706 , 79471 , 158942 , 1487243 , 2974486 , 10410701 , 20821402
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
-20821401
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 20821402 can be divided by 16 positive divisors.
The sum of these divisors (counting 20821402) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011011010110011010
3
Ternary
1110011211121001
4
Quaternary
1033123112122
5
Quinary
20312241102
6
Senary
2022135214
8
Octal
117332632
10
Decimal
20821402
12
Duodecimal
6b8150a
16
Hexadecimal
13db59a
20
Vigesimal
6a2da2
36
Base36
ce9wa
md5
6593aa1b1a96bd1bf564d127b3912a76
sha1
b934c24e992cfd4738bfb0c5b3539638d321d237
sha256
87e1229c5b52e56ba4847ff086d97453026fc1a0f65d2af148a582085b38312a
sha512
0c4990978d2d7b6f4c6346ce92443fdcf20f4d4dc9349dd4486a73579946c5f9ba3410bc7102ff4a6897f96904df660f97ecbb91b089aef840f64fbad7b7d661
ripemd-160
2a0519eb4d738b8b954eef73c10d8307c67d2880
Diameter
41642804
Circumference
130824727.12128
Area
1.3619771174662E+15
Volume
3.7811030770088E+22
Surface area
5.4479084698649E+15
Circumference
130824727.12128
Perimeter
83285608
Area
433530781245604
Diagonal
29445909.096022
Surface area
2601184687473624
Volume
9.0267186756888E+21
Space diagonal
36063726.148816
Perimeter
62464206
Area
1.877243349406E+14
Altitude
18031863.074408
Surface area
1.877243349406E+14
Volume
1.0638089979071E+21
Height
9815303.0320074