21132979 is an odd 8-digits composite number following 21132978
and preceding 21132980 . In scientific notation, it is written as 2.1132979 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 17529480 positive integers (up to 21132979) that are relatively prime to 21132979.
21132979 has 8 divisors, whose sum is 24931328
The reverse of 21132979 is 97923112
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million one hundred thirty-two thousand nine hundred seventy-nine
Scientific notation
2.1132979 × 10^7
Engineering notation
2.1132979 × 10^6
Prime Factorization
7 × 31 × 97387
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21132979
Product of the distinct prime numbers
The prime factorization of 21132979 is 7 × 31 × 97387.
Since it has a total of 3 prime factors.
6 , 3 , 3 , 9 , 755 , 269 , 1355 , 5339 , 92003 , 91364 , 662699 , 875823 , 4299655 , 3647015 , 25875047 , 59301003 , 192997863 , 673197390 , 1274253785 , 6942686213
n×2
42265958
n×3
63398937
n×4
84531916
n×5
105664895
n÷2
10566489.5
n÷3
7044326.3333333
n÷3
5283244.75
n÷5
4226595.8
n2
446602801414441
n3
9.4380476236326E+21
n4
1.9945406223123E+29
n5
4.2150585085972E+36
2 √n
4597.0619965365
3 √n
276.47354032211
4 √n
67.801637122834
5 √n
29.173742428076
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
-21132978
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 21132979 can be divided by 8 positive divisors.
The sum of these divisors (counting 21132979) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111011010110011
3
Ternary
1110202122222221
4
Quaternary
1100213122303
5
Quinary
20402223404
6
Senary
2032541511
8
Octal
120473263
10
Decimal
21132979
12
Duodecimal
70b1897
16
Hexadecimal
14276b3
20
Vigesimal
6c1c8j
36
Base36
ckyb7
md5
3a225ddaa2db2c4d43817151dce37b21
sha1
206e45d96ffb5505d82d706d315564d3e924eeb7
sha256
d128b16a95c544ff422f270074e298c050cb82134077784c991a318b7b52d6ea
sha512
430d3c77d52a3063748a9247c58403f311b1a8a1398f6ee4bb4b1c54b7e5c953e4b413bd548ce35df12b65a471997dd41c123d25fbd6008e62f686e40fa975c1
ripemd-160
1ff65ce6e0a535aed743558653526c94819d746a
Diameter
42265958
Circumference
132782423.14973
Area
1.4030440799962E+15
Volume
3.953400143818E+22
Surface area
5.6121763199849E+15
Circumference
132782423.14973
Perimeter
84531916
Area
446602801414441
Diagonal
29886545.515146
Surface area
2679616808486646
Volume
9.4380476236326E+21
Space diagonal
36603393.343286
Perimeter
63398937
Area
1.933846857131E+14
Altitude
18301696.671643
Surface area
1.933846857131E+14
Volume
1.1122845793054E+21
Height
9962181.8383819