20721853 is an odd 8-digits composite number following 20721852
and preceding 20721854 . In scientific notation, it is written as 2.0721853 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20437920 positive integers (up to 20721853) that are relatively prime to 20721853.
20721853 has 4 divisors, whose sum is 21005788
The reverse of 20721853 is 35812702
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million seven hundred twenty-one thousand eight hundred fifty-three
Scientific notation
2.0721853 × 10^7
Engineering notation
2.0721853 × 10^6
Prime Factorization
73 × 283861
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20721853
Product of the distinct prime numbers
The prime factorization of 20721853 is 73 × 283861.
Since it has a total of 2 prime factors.
5 , 3 , 19 , 87 , 773 , 147 , 395 , 5776 , 23770 , 47239 , 948581 , 151671 , 3613854 , 9327139 , 3995962 , 29224456 , 202876476 , 905458912 , 2053448323 , 693244109
n×2
41443706
n×3
62165559
n×4
82887412
n×5
103609265
n÷2
10360926.5
n÷3
6907284.3333333
n÷3
5180463.25
n÷5
4144370.6
n2
429395191753609
n3
8.8978640424251E+21
n4
1.8438023070112E+29
n5
3.8207000366947E+36
2 √n
4552.1262065105
3 √n
274.6689260963
4 √n
67.469446466608
5 √n
29.059338085531
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
-20721852
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 20721853 can be divided by 4 positive divisors.
The sum of these divisors (counting 20721853) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111000011000010111101
3
Ternary
1102222210001001
4
Quaternary
1033003002331
5
Quinary
20301044403
6
Senary
2020050301
8
Octal
117030275
10
Decimal
20721853
12
Duodecimal
6b33991
16
Hexadecimal
13c30bd
20
Vigesimal
69a4cd
36
Base36
cc531
md5
5f55d002e92e186943ef355d633390cf
sha1
ed59d13fbdaa7737cafa3fc260d1f6dd798cbd55
sha256
a7944d8102bbf1a6d31f44fddbcb855ed83b0ce07f079e7eecae158a731c99a3
sha512
7a0f88bff38d34ae67ae27fe85a95ecac4bd65562d048305ae7dd6777ce9fa9747ca3a5157c3687d4476ecebf65cfe2ed6b014219dc2a755617dfec776f026c1
ripemd-160
f7304a16bc66368b308cf589ed7d303724e09b1e
Diameter
41443706
Circumference
130199242.30714
Area
1.3489847798999E+15
Volume
3.7271285744431E+22
Surface area
5.3959391195997E+15
Circumference
130199242.30714
Perimeter
82887412
Area
429395191753609
Diagonal
29305125.550102
Surface area
2576371150521654
Volume
8.8978640424251E+21
Space diagonal
35891302.222974
Perimeter
62165559
Area
1.8593357216076E+14
Altitude
17945651.111487
Surface area
1.8593357216076E+14
Volume
1.0486233337458E+21
Height
9768375.1833672