20179921 is an odd 8-digits prime number following 20179920
and preceding 20179922 . In scientific notation, it is written as 2.0179921 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 20179920 positive integers (up to 20179921) that are relatively prime to 20179921.
20179921 has 2 divisors, whose sum is 20179922
The reverse of 20179921 is 12997102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred seventy-nine thousand nine hundred twenty-one
Scientific notation
2.0179921 × 10^7
Engineering notation
2.0179921 × 10^6
Prime Factorization
20179921
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20179921
Product of the distinct prime numbers
The prime factorization of 20179921 is 20179921.
Since it has a total of 1 prime factors.
6 , 5 , 1 , 40 , 501 , 809 , 3032 , 7848 , 14901 , 70248 , 419339 , 505475 , 9149093 , 5302471 , 48810652 , 36392055 , 79275734 , 384224534 , 3346774599 , 3692145471
n×2
40359842
n×3
60539763
n×4
80719684
n×5
100899605
n÷2
10089960.5
n÷3
6726640.3333333
n÷3
5044980.25
n÷5
4035984.2
n2
407229211566241
n3
8.217853318299E+21
n4
1.6583563075286E+29
n5
3.3465499275779E+36
2 √n
4492.2066960459
3 √n
272.25330084034
4 √n
67.023926295361
5 √n
28.9057267123
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20179922
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10089961
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4492.2068073498
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999008916
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20179921 can be divided by 2 positive divisors.
The sum of these divisors (counting 20179921) is 20179922, the average is 10089961.
Base
System
Value
2
Binary
1001100111110101111010001
3
Ternary
1101222020122111
4
Quaternary
1030332233101
5
Quinary
20131224141
6
Senary
2000305321
8
Octal
114765721
10
Decimal
20179921
12
Duodecimal
6912241
16
Hexadecimal
133ebd1
20
Vigesimal
6629g1
36
Base36
c0ixd
md5
ca214e2745bdf501cfa8a09db3740723
sha1
2bb94ec4aea747cc07806a976fd6d0de0d2f50db
sha256
70597a92796ef07222f696456705082c77dc68aad70d2a1562086097b59e29a0
sha512
91dfcf26f182142896ad795ab05be1a76523a078f486700a3302f194648b6d45c4869108e5fd54355a3e01f780b5306b4f607af0fd70b130d7487ebe38e219ca
ripemd-160
e7d8a5721467d84b56e8d0a94dcd67fc5722ce30
Diameter
40359842
Circumference
126794183.12724
Area
1.2793482993837E+15
Volume
3.4422863484062E+22
Surface area
5.1173931975347E+15
Circumference
126794183.12724
Perimeter
80719684
Area
407229211566241
Diagonal
28538717.965818
Surface area
2443375269397446
Volume
8.217853318299E+21
Space diagonal
34952648.464726
Perimeter
60539763
Area
1.7633542118974E+14
Altitude
17476324.232363
Surface area
1.7633542118974E+14
Volume
9.6848330136094E+20
Height
9512905.9886059