21305437 is an odd 8-digits composite number following 21305436
and preceding 21305438 . In scientific notation, it is written as 2.1305437 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20052160 positive integers (up to 21305437) that are relatively prime to 21305437.
21305437 has 4 divisors, whose sum is 22558716
The reverse of 21305437 is 73450312
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million three hundred five thousand four hundred thirty-seven
Scientific notation
2.1305437 × 10^7
Engineering notation
2.1305437 × 10^6
Prime Factorization
17 × 1253261
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21305437
Product of the distinct prime numbers
The prime factorization of 21305437 is 17 × 1253261.
Since it has a total of 2 prime factors.
8 , 8 , 11 , 88 , 816 , 864 , 8829 , 1070 , 88258 , 76137 , 925085 , 492117 , 5652736 , 8971054 , 83623659 , 69545728 , 531594269 , 196162720 , 5556418628 , 7419671027
n×2
42610874
n×3
63916311
n×4
85221748
n×5
106527185
n÷2
10652718.5
n÷3
7101812.3333333
n÷3
5326359.25
n÷5
4261087.4
n2
453921645760969
n3
9.6709990266966E+21
n4
2.0604486049035E+29
n5
4.3898757943509E+36
2 √n
4615.7812989785
3 √n
277.22356802614
4 √n
67.939541498148
5 √n
29.221202864363
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
-21305436
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 21305437 can be divided by 4 positive divisors.
The sum of these divisors (counting 21305437) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001010001100001011101
3
Ternary
1111002102120021
4
Quaternary
1101101201131
5
Quinary
20423233222
6
Senary
2040352141
8
Octal
121214135
10
Decimal
21305437
12
Duodecimal
7175651
16
Hexadecimal
145185d
20
Vigesimal
6d33bh
36
Base36
condp
md5
be78ea472093ae5bab534d52aed2002b
sha1
685a72f1e111ac00e5b5eb52d32c61ebab869b74
sha256
3dbfde6ee3d1e0a6a0763b0fd86cafc3fb19c989830a32c79d805662ed8d9237
sha512
f97f0fcac9898be21ac8e403c77d590a470f105a737ea88160a15c13411dbd48e7a9f2d1604ac6e3df993413754262bc6ec4271637416f66a76d2d9ee00d9370
ripemd-160
44638f9685f820ee3ff1ecd19476b00f775d3a34
Diameter
42610874
Circumference
133866008.72144
Area
1.426036907628E+15
Volume
4.0509785993526E+22
Surface area
5.7041476305122E+15
Circumference
133866008.72144
Perimeter
85221748
Area
453921645760969
Diagonal
30130437.957686
Surface area
2723529874565814
Volume
9.6709990266966E+21
Space diagonal
36902099.361458
Perimeter
63916311
Area
1.9655383827832E+14
Altitude
18451049.680729
Surface area
1.9655383827832E+14
Volume
1.1397381654376E+21
Height
10043479.319229