21682421 is an odd 8-digits composite number following 21682420
and preceding 21682422 . In scientific notation, it is written as 2.1682421 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 21672972 positive integers (up to 21682421) that are relatively prime to 21682421.
21682421 has 4 divisors, whose sum is 21691872
The reverse of 21682421 is 12428612
Previous prime number is 5527
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million six hundred eighty-two thousand four hundred twenty-one
Scientific notation
2.1682421 × 10^7
Engineering notation
2.1682421 × 10^6
Prime Factorization
5527 × 3923
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21682421
Product of the distinct prime numbers
The prime factorization of 21682421 is 5527 × 3923.
Since it has a total of 2 prime factors.
9 , 5 , 54 , 45 , 608 , 649 , 3684 , 9616 , 3520 , 54418 , 127680 , 757022 , 8592845 , 1920843 , 32622630 , 20733499 , 449562766 , 904912722 , 7451121162 , 3239761601
n×2
43364842
n×3
65047263
n×4
86729684
n×5
108412105
n÷2
10841210.5
n÷3
7227473.6666667
n÷3
5420605.25
n÷5
4336484.2
n2
470127380421241
n3
1.0193499785921E+22
n4
2.2101975382174E+29
n5
4.7922433516793E+36
2 √n
4656.4386606075
3 √n
278.84910670881
4 √n
68.23810270375
5 √n
29.323888165727
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
-21682420
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 21682421 can be divided by 4 positive divisors.
The sum of these divisors (counting 21682421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101101100011110101
3
Ternary
1111210120200122
4
Quaternary
1102231203311
5
Quinary
21022314141
6
Senary
2052421325
8
Octal
122554365
10
Decimal
21682421
12
Duodecimal
7317845
16
Hexadecimal
14ad8f5
20
Vigesimal
6fa611
36
Base36
cwq9h
md5
3812c6e8634b550e05aabb3316ed9a9c
sha1
0ffb99c575d72a924bed1943f6fa2c74364e6f06
sha256
88d3361f3ce95a36719b4faa146dad6812a12e67ec31e87da8136fa5f96b71ca
sha512
26697778b4aaab550343ab619ed2ed73876a1c1879089f4fc5adf1308ca2ed9e1b93c8d43f91ff4209ec53d1cfa226f1d1c9eb247ae849ee36287fb4fce6b5a0
ripemd-160
6a52d2d144288e93e6119f3c4e426cd9e417b064
Diameter
43364842
Circumference
136234669.05128
Area
1.4769487245828E+15
Volume
4.2698432055756E+22
Surface area
5.9077948983311E+15
Circumference
136234669.05128
Perimeter
86729684
Area
470127380421241
Diagonal
30663573.843283
Surface area
2820764282527446
Volume
1.0193499785921E+22
Space diagonal
37555054.803098
Perimeter
65047263
Area
2.0357112722971E+14
Altitude
18777527.401549
Surface area
2.0357112722971E+14
Volume
1.2013154704413E+21
Height
10221191.281094