20995721 is an odd 8-digits prime number following 20995720
and preceding 20995722 . In scientific notation, it is written as 2.0995721 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 20995720 positive integers (up to 20995721) that are relatively prime to 20995721.
20995721 has 2 divisors, whose sum is 20995722
The reverse of 20995721 is 12759902
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred ninety-five thousand seven hundred twenty-one
Scientific notation
2.0995721 × 10^7
Engineering notation
2.0995721 × 10^6
Prime Factorization
20995721
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20995721
Product of the distinct prime numbers
The prime factorization of 20995721 is 20995721.
Since it has a total of 1 prime factors.
2 , 10 , 1 , 92 , 498 , 616 , 714 , 2838 , 87740 , 26611 , 387491 , 27088 , 153361 , 8005628 , 30343278 , 28884504 , 5686209 , 79990069 , 1353447633 , 1966351461
n×2
41991442
n×3
62987163
n×4
83982884
n×5
104978605
n÷2
10497860.5
n÷3
6998573.6666667
n÷3
5248930.25
n÷5
4199144.2
n2
440820300309841
n3
9.2553400364416E+21
n4
1.9432253716526E+29
n5
4.0799417743339E+36
2 √n
4582.1087939943
3 √n
275.87367757704
4 √n
67.691275612108
5 √n
29.135747089513
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20995722
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10497861
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4582.1089031144
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999047425
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20995721 can be divided by 2 positive divisors.
The sum of these divisors (counting 20995721) is 20995722, the average is 10497861.
Base
System
Value
2
Binary
1010000000101111010001001
3
Ternary
1110111200201022
4
Quaternary
1100011322021
5
Quinary
20333330341
6
Senary
2030002225
8
Octal
120057211
10
Decimal
20995721
12
Duodecimal
7046375
16
Hexadecimal
1405e89
20
Vigesimal
6b4961
36
Base36
ci0eh
md5
4533395c0e78c4507ed344bcfcce7b7e
sha1
95d07e06f49d4922646fcbe6cb16fe8ebd8a3a24
sha256
95b61088cbec289cd510117bb3f3861a22fb776010db7a33487401da61f8cfcf
sha512
35189ea9bee64c3a02181b698dd651ca76885956646dcbce849a7e05d1f11c2cbfb12c014da5edb65e7078385c6158314e1355ade8c1b3c90eaabb5e9b3f1453
ripemd-160
00461aff4f7f8898e3cffe02ac2352b225a6ede1
Diameter
41991442
Circumference
131920005.70084
Area
1.3848778170066E+15
Volume
3.8768677686614E+22
Surface area
5.5395112680266E+15
Circumference
131920005.70084
Perimeter
83982884
Area
440820300309841
Diagonal
29692433.390002
Surface area
2644921801859046
Volume
9.2553400364416E+21
Space diagonal
36365655.513541
Perimeter
62987163
Area
1.908807892861E+14
Altitude
18182827.75677
Surface area
1.908807892861E+14
Volume
1.0907522836592E+21
Height
9897477.7966672