20992561 is an odd 8-digits composite number following 20992560
and preceding 20992562 . In scientific notation, it is written as 2.0992561 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20876400 positive integers (up to 20992561) that are relatively prime to 20992561.
20992561 has 4 divisors, whose sum is 21108724
The reverse of 20992561 is 16529902
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million nine hundred ninety-two thousand five hundred sixty-one
Scientific notation
2.0992561 × 10^7
Engineering notation
2.0992561 × 10^6
Prime Factorization
181 × 115981
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20992561
Product of the distinct prime numbers
The prime factorization of 20992561 is 181 × 115981.
Since it has a total of 2 prime factors.
1 , 6 , 12 , 97 , 689 , 1 , 8277 , 427 , 35984 , 7851 , 240983 , 395733 , 3269220 , 5916529 , 1446388 , 66577786 , 142802 , 422509018 , 5199145654 , 4493649616
n×2
41985122
n×3
62977683
n×4
83970244
n×5
104962805
n÷2
10496280.5
n÷3
6997520.3333333
n÷3
5248140.25
n÷5
4198512.2
n2
440687617338721
n3
9.2511616889278E+21
n4
1.9420557607568E+29
n5
4.0768724023088E+36
2 √n
4581.76396162
3 √n
275.85983658915
4 √n
67.68872846804
5 √n
29.134870010759
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
-20992560
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 20992561 can be divided by 4 positive divisors.
The sum of these divisors (counting 20992561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000101001000110001
3
Ternary
1110111112101021
4
Quaternary
1100011020301
5
Quinary
20333230221
6
Senary
2025535441
8
Octal
120051061
10
Decimal
20992561
12
Duodecimal
7044581
16
Hexadecimal
1405231
20
Vigesimal
6b4181
36
Base36
chxyp
md5
0ecbf857cce15f504ce3964538e36264
sha1
96adaaf6fa2a2fdbd2151cefa87da65af277fe22
sha256
8999886b74068c445fd69de39a85418ab05e0c3db1ce1385821a429958c5969a
sha512
e89e42d4a4c92994259571941abb8350728efa1d676a805a6a82883dcbe16e81442a93ae839e4dd303e32b6d9952cb8de9ee14842a335378d1333e3bbdf76fbd
ripemd-160
7e29eb2102ed9d61365fe99dbefbed40798780d3
Diameter
41985122
Circumference
131900150.83527
Area
1.3844609811593E+15
Volume
3.8751175465476E+22
Surface area
5.5378439246373E+15
Circumference
131900150.83527
Perimeter
83970244
Area
440687617338721
Diagonal
29687964.475145
Surface area
2644125704032326
Volume
9.2511616889278E+21
Space diagonal
36360182.232989
Perimeter
62977683
Area
1.9082333587428E+14
Altitude
18180091.116494
Surface area
1.9082333587428E+14
Volume
1.0902598606823E+21
Height
9895988.1583815