21721799 is an odd 8-digits composite number following 21721798
and preceding 21721800 . In scientific notation, it is written as 2.1721799 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 19746980 positive integers (up to 21721799) that are relatively prime to 21721799.
21721799 has 4 divisors, whose sum is 21901440
The reverse of 21721799 is 99712712
Previous prime number is 121
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million seven hundred twenty-one thousand seven hundred ninety-nine
Scientific notation
2.1721799 × 10^7
Engineering notation
2.1721799 × 10^6
Prime Factorization
121 × 179519
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21721799
Product of the distinct prime numbers
The prime factorization of 21721799 is 121 × 179519.
Since it has a total of 2 prime factors.
7 , 9 , 53 , 40 , 1 , 394 , 3786 , 716 , 7333 , 11574 , 762583 , 685991 , 136109 , 1829573 , 69710602 , 48283714 , 369004232 , 627785621 , 8884636247 , 3061669309
n×2
43443598
n×3
65165397
n×4
86887196
n×5
108608995
n÷2
10860899.5
n÷3
7240599.6666667
n÷3
5430449.75
n÷5
4344359.8
n2
471836551796401
n3
1.0249138738975E+22
n4
2.2262973161112E+29
n5
4.8359182814806E+36
2 √n
4660.6650812947
3 √n
279.01781295381
4 √n
68.269063867133
5 √n
29.334531609439
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
-21721798
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 21721799 can be divided by 4 positive divisors.
The sum of these divisors (counting 21721799) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010110111001011000111
3
Ternary
1111212120201002
4
Quaternary
1102313023013
5
Quinary
21030044144
6
Senary
2053323515
8
Octal
122671307
10
Decimal
21721799
12
Duodecimal
733659b
16
Hexadecimal
14b72c7
20
Vigesimal
6ff49j
36
Base36
cxknb
md5
72bee9e4c71b3356ee815a060d7413b2
sha1
c0bf95f81e3421e212df9577a45de4370fb13f53
sha256
405eaa7cde0dae7242da0d3a06dc6b7be97aab0251436d8306864b519129046a
sha512
ed749c30bf6e5d946d65f2a28ad62c230a7d6380e4a4ec277bfda4619443ca0bcbec8961667bbe3cbb7a96b3f3f90f8cb18f3f226369321441bcc488c3d880cb
ripemd-160
4a23decf8bc4bad2917d8e9753df693e68cc50b0
Diameter
43443598
Circumference
136482088.32231
Area
1.4823182448187E+15
Volume
4.2931491957313E+22
Surface area
5.9292729792749E+15
Circumference
136482088.32231
Perimeter
86887196
Area
471836551796401
Diagonal
30719262.744942
Surface area
2831019310778406
Volume
1.0249138738975E+22
Space diagonal
37623259.499799
Perimeter
65165397
Area
2.0431122014487E+14
Altitude
18811629.749899
Surface area
2.0431122014487E+14
Volume
1.2078725839418E+21
Height
10239754.248314