21001572 is an even 8-digits composite number following 21001571
and preceding 21001573 . In scientific notation, it is written as 2.1001572 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 6951744 positive integers (up to 21001572) that are relatively prime to 21001572.
21001572 has 24 divisors, whose sum is 38379936
The reverse of 21001572 is 27510012
Previous prime number is 163
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million one thousand five hundred seventy-two
Scientific notation
2.1001572 × 10^7
Engineering notation
2.1001572 × 10^6
Prime Factorization
2 × 2 × 27 × 163 × 1193
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10500786
Product of the distinct prime numbers
The prime factorization of 21001572 is 2 × 2 × 27 × 163 × 1193.
Since it has a total of 5 prime factors.
10 , 5 , 76 , 96 , 451 , 772 , 5239 , 6757 , 69635 , 61674 , 122479 , 193064 , 4695362 , 9880820 , 50829688 , 12418481 , 458167087 , 13135538 , 5910176410 , 5333552021
n×2
42003144
n×3
63004716
n×4
84006288
n×5
105007860
n÷2
10500786
n÷3
7000524
n÷3
5250393
n÷5
4200314.4
n2
441066026471184
n3
9.2630799116885E+21
n4
1.9453923970708E+29
n5
4.0856298495335E+36
2 √n
4582.7472110078
3 √n
275.89930163905
4 √n
67.695991099974
5 √n
29.137370794236
1 , 2 , 4 , 27 , 54 , 108 , 163 , 326 , 652 , 1193 , 2386 , 4401 , 4772 , 8802 , 17604 , 32211 , 64422 , 128844 , 194459 , 388918 , 777836 , 5250393 , 10500786 , 21001572
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21001571
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21001572 can be divided by 24 positive divisors.
The sum of these divisors (counting 21001572) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000000111010101100100
3
Ternary
1110111222202000
4
Quaternary
1100013111210
5
Quinary
20334022242
6
Senary
2030045300
8
Octal
120072544
10
Decimal
21001572
12
Duodecimal
7049830
16
Hexadecimal
1407564
20
Vigesimal
6b53ic
36
Base36
ci4x0
md5
8283308b31a02b15326336ba9ba97b34
sha1
c604cac5c380002f369fc8010ae5f95f78c44ea6
sha256
0797e793cdf82ec85755ca11c73779b897395b3b7a9dd1f34153a7369f6c1ddd
sha512
20a2df110c9d40b66330e367223cc8cb862a7f8f3f6ad9bc10a44530e3a444aa2a87c19d1fccb809ba29259ccb691f17fb901d9796bf6b177803e4e20434e9f0
ripemd-160
5d9e03f2c3d6fcd9eee7d458a3e4b48018a9f8de
Diameter
42003144
Circumference
131956768.61807
Area
1.3856497885099E+15
Volume
3.8801098400234E+22
Surface area
5.5425991540397E+15
Circumference
131956768.61807
Perimeter
84006288
Area
441066026471184
Diagonal
29700707.953555
Surface area
2646396158827104
Volume
9.2630799116885E+21
Space diagonal
36375789.742816
Perimeter
63004716
Area
1.9098719183515E+14
Altitude
18187894.871408
Surface area
1.9098719183515E+14
Volume
1.0916644367046E+21
Height
9900235.9845183