20821492 is an even 8-digits composite number following 20821491
and preceding 20821493 . In scientific notation, it is written as 2.0821492 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors.
There are 9862776 positive integers (up to 20821492) that are relatively prime to 20821492.
20821492 has 12 divisors, whose sum is 38355520
The reverse of 20821492 is 29412802
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eight hundred twenty-one thousand four hundred ninety-two
Scientific notation
2.0821492 × 10^7
Engineering notation
2.0821492 × 10^6
Prime Factorization
2 × 2 × 19 × 273967
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10410746
Product of the distinct prime numbers
The prime factorization of 20821492 is 2 × 2 × 19 × 273967.
Since it has a total of 4 prime factors.
5 , 10 , 100 , 12 , 173 , 431 , 4429 , 82 , 76305 , 84336 , 867922 , 174456 , 5671367 , 4866388 , 82904016 , 34167948 , 381654768 , 836716091 , 1109925540 , 6765248138
n×2
41642984
n×3
62464476
n×4
83285968
n×5
104107460
n÷2
10410746
n÷3
6940497.3333333
n÷3
5205373
n÷5
4164298.4
n2
433534529106064
n3
9.0268357295057E+21
n4
1.8795218792722E+29
n5
3.913444977309E+36
2 √n
4563.0573084282
3 √n
275.10846189945
4 √n
67.550405686629
5 √n
29.087230286273
1 , 2 , 4 , 19 , 38 , 76 , 273967 , 547934 , 1095868 , 5205373 , 10410746 , 20821492
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20821491
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20821492 can be divided by 12 positive divisors.
The sum of these divisors (counting 20821492) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111011011010111110100
3
Ternary
1110011211201101
4
Quaternary
1033123113310
5
Quinary
20312241432
6
Senary
2022135444
8
Octal
117332764
10
Decimal
20821492
12
Duodecimal
6b81584
16
Hexadecimal
13db5f4
20
Vigesimal
6a2dec
36
Base36
ce9ys
md5
0a5f3ef6a80db337ceff7c4f50884729
sha1
3e370784a7e69924fc9a0a42104e12693d71429f
sha256
1920e882870144427f09ad9debe4d4d192fadde29dfc4f47ec9a6df5cd660124
sha512
90b8b2562d74fdaa711b3639384635afa809e686374fbb81326983bd65ce03da9c92f078b75e216006c08b6454b20784b2e9b9dc8eaf695bed779dba4e2eb501
ripemd-160
78897c68106601e4729d156331a917fac4c39fdc
Diameter
41642984
Circumference
130825292.60796
Area
1.3619888917171E+15
Volume
3.7811521083969E+22
Surface area
5.4479555668685E+15
Circumference
130825292.60796
Perimeter
83285968
Area
433534529106064
Diagonal
29446036.375243
Surface area
2601207174636384
Volume
9.0268357295057E+21
Space diagonal
36063882.033389
Perimeter
62464476
Area
1.8772595781179E+14
Altitude
18031941.016694
Surface area
1.8772595781179E+14
Volume
1.0638227928317E+21
Height
9815345.4584143