21297977 is an odd 8-digits composite number following 21297976
and preceding 21297978 . In scientific notation, it is written as 2.1297977 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors.
There are 19115712 positive integers (up to 21297977) that are relatively prime to 21297977.
21297977 has 16 divisors, whose sum is 23639040
The reverse of 21297977 is 77979212
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-one million two hundred ninety-seven thousand nine hundred seventy-seven
Scientific notation
2.1297977 × 10^7
Engineering notation
2.1297977 × 10^6
Prime Factorization
23 × 29 × 37 × 863
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21297977
Product of the distinct prime numbers
The prime factorization of 21297977 is 23 × 29 × 37 × 863.
Since it has a total of 4 prime factors.
9 , 4 , 31 , 22 , 289 , 14 , 1651 , 9331 , 26939 , 79603 , 150015 , 598180 , 9072659 , 3348994 , 59380277 , 94445502 , 904492955 , 886809512 , 3139728326 , 2560147037
n×2
42595954
n×3
63893931
n×4
85191908
n×5
106489885
n÷2
10648988.5
n÷3
7099325.6666667
n÷3
5324494.25
n÷5
4259595.4
n2
453603824292529
n3
9.6608438168943E+21
n4
2.0575642941281E+29
n5
4.3821957012361E+36
2 √n
4614.973131016
3 √n
277.19120806654
4 √n
67.93359353822
5 √n
29.219156243953
1 , 23 , 29 , 37 , 667 , 851 , 863 , 1073 , 19849 , 24679 , 25027 , 31931 , 575621 , 734413 , 925999 , 21297977
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21297976
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21297977 can be divided by 16 positive divisors.
The sum of these divisors (counting 21297977) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001001111101100111001
3
Ternary
1111002001022222
4
Quaternary
1101033230321
5
Quinary
20423013402
6
Senary
2040253425
8
Octal
121175471
10
Decimal
21297977
12
Duodecimal
7171275
16
Hexadecimal
144fb39
20
Vigesimal
6d24ih
36
Base36
cohmh
md5
74518991af4bdee823a047fcffc96b9a
sha1
cde7aabd240cdcc784295f9746129d450979b9ce
sha256
39ca015287344a65dd1801f6bcd0483b2079634c3f615c69cdf94f9d955f6221
sha512
5f418cc1ee5d2ed6243cd09a8b1cd34a6e842763e7d2c9a669cf7412c85838531c6fad20af5075fe70b0548789e9b1ab5c0194f07517a8465c2f7b5aea00c922
ripemd-160
85844e1acdfcb3671d44e766dd2217355bac1dd6
Diameter
42595954
Circumference
133819136.15905
Area
1.4250384420376E+15
Volume
4.0467247950178E+22
Surface area
5.7001537681506E+15
Circumference
133819136.15905
Perimeter
85191908
Area
453603824292529
Diagonal
30119887.92451
Surface area
2721622945755174
Volume
9.6608438168943E+21
Space diagonal
36889178.262433
Perimeter
63893931
Area
1.9641621754555E+14
Altitude
18444589.131217
Surface area
1.9641621754555E+14
Volume
1.138541362485E+21
Height
10039962.641503