20542979 is an odd 8-digits composite number following 20542978
and preceding 20542980 . In scientific notation, it is written as 2.0542979 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 19521216 positive integers (up to 20542979) that are relatively prime to 20542979.
20542979 has 8 divisors, whose sum is 21576480
The reverse of 20542979 is 97924502
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million five hundred forty-two thousand nine hundred seventy-nine
Scientific notation
2.0542979 × 10^7
Engineering notation
2.0542979 × 10^6
Prime Factorization
23 × 157 × 5689
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20542979
Product of the distinct prime numbers
The prime factorization of 20542979 is 23 × 157 × 5689.
Since it has a total of 3 prime factors.
1 , 9 , 57 , 6 , 273 , 462 , 2423 , 3301 , 53358 , 86887 , 679231 , 547121 , 5389177 , 5206476 , 58562317 , 52314437 , 702830879 , 550547897 , 4757057296 , 8849704571
n×2
41085958
n×3
61628937
n×4
82171916
n×5
102714895
n÷2
10271489.5
n÷3
6847659.6666667
n÷3
5135744.75
n÷5
4108595.8
n2
422013986194441
n3
8.6694244560987E+21
n4
1.7809580454372E+29
n5
3.6586183727298E+36
2 √n
4532.4363205676
3 √n
273.87631389849
4 √n
67.323371280467
5 √n
29.008995084093
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20542978
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20542979 can be divided by 8 positive divisors.
The sum of these divisors (counting 20542979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110010111011000000011
3
Ternary
1102122200200002
4
Quaternary
1032113120003
5
Quinary
20224333404
6
Senary
2012150215
8
Octal
116273003
10
Decimal
20542979
12
Duodecimal
6a6836b
16
Hexadecimal
1397603
20
Vigesimal
687h8j
36
Base36
c8b2b
md5
c145b00976b088159d804d90f3b1a750
sha1
e23ca662dd8ee4dcbd16d7894ebd1cde6307dcfc
sha256
e70a35bc9ef421694a561af48a9c20b379b21d8f11ac1a4d0b28a5f65d5b6215
sha512
e6bd748f2601480b02f90d0fb745c1e2914809d6e154399fd52e8fedc07ec8c585baf1ec2fcaa7c1b2e927f4436aebdf9df7abf9e538fae1596217210cc6b520
ripemd-160
c81c81d24559df7db21961ba3855b53dfb1a92a0
Diameter
41085958
Circumference
129075343.8185
Area
1.3257960387406E+15
Volume
3.6314400242842E+22
Surface area
5.3031841549624E+15
Circumference
129075343.8185
Perimeter
82171916
Area
422013986194441
Diagonal
29052159.513346
Surface area
2532083917166646
Volume
8.6694244560987E+21
Space diagonal
35581483.36682
Perimeter
61628937
Area
1.8273741639836E+14
Altitude
17790741.68341
Surface area
1.8273741639836E+14
Volume
1.0217014703153E+21
Height
9684053.1711152