20921479 is an odd 8-digits prime number following 20921478
and preceding 20921480 . In scientific notation, it is written as 2.0921479 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 20921478 positive integers (up to 20921479) that are relatively prime to 20921479.
20921479 has 2 divisors, whose sum is 20921480
The reverse of 20921479 is 97412902
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million nine hundred twenty-one thousand four hundred seventy-nine
Scientific notation
2.0921479 × 10^7
Engineering notation
2.0921479 × 10^6
Prime Factorization
20921479
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20921479
Product of the distinct prime numbers
The prime factorization of 20921479 is 20921479.
Since it has a total of 1 prime factors.
6 , 4 , 17 , 56 , 98 , 306 , 3150 , 9097 , 66773 , 95246 , 793655 , 566268 , 6423 , 5173622 , 78948342 , 28238122 , 640081929 , 283837233 , 1860670837 , 5455854424
n×2
41842958
n×3
62764437
n×4
83685916
n×5
104607395
n÷2
10460739.5
n÷3
6973826.3333333
n÷3
5230369.75
n÷5
4184295.8
n2
437708283547441
n3
9.1575046623638E+21
n4
1.9158854148605E+29
n5
4.008315647341E+36
2 √n
4574.0003279405
3 √n
275.54812549218
4 √n
67.631356100115
5 √n
29.115112769096
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20921480
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10460740
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4574.000437254
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999044045
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921479 can be divided by 2 positive divisors.
The sum of these divisors (counting 20921479) is 20921480, the average is 10460740.
Base
System
Value
2
Binary
1001111110011110010000111
3
Ternary
1110100220212121
4
Quaternary
1033303302013
5
Quinary
20323441404
6
Senary
2024230411
8
Octal
117636207
10
Decimal
20921479
12
Duodecimal
700b407
16
Hexadecimal
13f3c87
20
Vigesimal
6af3dj
36
Base36
cgf47
md5
e41c5abd3559dea02142e36b45a567dd
sha1
c09e973679cab6a33ddbd5fbcc14e4d7b0f519a8
sha256
acc406f10ac5f127b6d7153cb4b053dbe195fa93242e0bb4d4562be4b98d85ff
sha512
dfedf7c0534c8d96ef1b83b390fc2c5a06ff5111cfbecd0e1242045ae057676c93f0730b3f0ccc91488ad69a34436661205b341ea6ad0e24e020466c60d32ec8
ripemd-160
3ad17e38fe6e2bac5b4fcaedee226909507b311d
Diameter
41842958
Circumference
131453529.45727
Area
1.375101128008E+15
Volume
3.8358865829995E+22
Surface area
5.5004045120322E+15
Circumference
131453529.45727
Perimeter
83685916
Area
437708283547441
Diagonal
29587439.346704
Surface area
2626249701284646
Volume
9.1575046623638E+21
Space diagonal
36237064.597485
Perimeter
62764437
Area
1.8953324649948E+14
Altitude
18118532.298743
Surface area
1.8953324649948E+14
Volume
1.0792222742508E+21
Height
9862479.7822346