21000437 is an odd 8-digits composite number following 21000436
and preceding 21000438 . In scientific notation, it is written as 2.1000437 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 20276256 positive integers (up to 21000437) that are relatively prime to 21000437.
21000437 has 4 divisors, whose sum is 21724620
The reverse of 21000437 is 73400012
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million four hundred thirty-seven
Scientific notation
2.1000437 × 10^7
Engineering notation
2.1000437 × 10^6
Prime Factorization
29 × 724153
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000437
Product of the distinct prime numbers
The prime factorization of 21000437 is 29 × 724153.
Since it has a total of 2 prime factors.
4 , 8 , 74 , 93 , 723 , 859 , 2994 , 8428 , 25069 , 17125 , 243987 , 482013 , 602855 , 9475134 , 14668753 , 79069006 , 279504003 , 107962337 , 11410386 , 1359775397
n×2
42000874
n×3
63001311
n×4
84001748
n×5
105002185
n÷2
10500218.5
n÷3
7000145.6666667
n÷3
5250109.25
n÷5
4200087.4
n2
441018354190969
n3
9.2615781630311E+21
n4
1.9449718873331E+29
n5
4.084525958671E+36
2 √n
4582.6233753168
3 √n
275.89433135478
4 √n
67.69507644812
5 √n
29.137055849899
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
-21000436
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 21000437 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000437) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111000011110101
3
Ternary
1110111221011222
4
Quaternary
1100013003311
5
Quinary
20334003222
6
Senary
2030040125
8
Octal
120070365
10
Decimal
21000437
12
Duodecimal
7049045
16
Hexadecimal
14070f5
20
Vigesimal
6b511h
36
Base36
ci41h
md5
7a39dda57c5686a81bce1dc713dcd349
sha1
b6c6e069cf22bc196077166e3173ed539200071d
sha256
41469a3bc99bf3a5309c2adb3af56754edb41fdb9af56d66986aa11b5bc552a2
sha512
416bc28cf3f92fe4248e6ac25ef898bb241794d41f8af30ebe8b8c1988a0780a63c662fecb6f0ef5c5172d861cc0326c2cf5feda648833ab57dc965baf688093
ripemd-160
db575966cad6e3e7cc6a2a149baf2963074417fd
Diameter
42000874
Circumference
131949637.20275
Area
1.3855000216246E+15
Volume
3.8794807890168E+22
Surface area
5.5420000864984E+15
Circumference
131949637.20275
Perimeter
84001748
Area
441018354190969
Diagonal
29699102.821162
Surface area
2646110125145814
Volume
9.2615781630311E+21
Space diagonal
36373823.865149
Perimeter
63001311
Area
1.9096654913229E+14
Altitude
18186911.932575
Surface area
1.9096654913229E+14
Volume
1.0914874539281E+21
Height
9899700.9403873