21521572 is an even 8-digits composite number following 21521571
and preceding 21521573 . In scientific notation, it is written as 2.1521572 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors.
There are 10760784 positive integers (up to 21521572) that are relatively prime to 21521572.
21521572 has 6 divisors, whose sum is 37662758
The reverse of 21521572 is 27512512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million five hundred twenty-one thousand five hundred seventy-two
Scientific notation
2.1521572 × 10^7
Engineering notation
2.1521572 × 10^6
Prime Factorization
2 × 2 × 5380393
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10760786
Product of the distinct prime numbers
The prime factorization of 21521572 is 2 × 2 × 5380393.
Since it has a total of 3 prime factors.
5 , 2 , 80 , 20 , 12 , 805 , 7494 , 8467 , 72505 , 99619 , 325957 , 752842 , 1773230 , 5228575 , 50440842 , 86341092 , 961381242 , 392375820 , 6886036641 , 6725025645
n×2
43043144
n×3
64564716
n×4
86086288
n×5
107607860
n÷2
10760786
n÷3
7173857.3333333
n÷3
5380393
n÷5
4304314.4
n2
463178061351184
n3
9.9683199961899E+21
n4
2.1453391651704E+29
n5
4.6171071307635E+36
2 √n
4639.1348331343
3 √n
278.15785593413
4 √n
68.11119462419
5 √n
29.28025118513
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21521571
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21521572 can be divided by 6 positive divisors.
The sum of these divisors (counting 21521572) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010010000110010010100100
3
Ternary
1111111102001021
4
Quaternary
1102012102210
5
Quinary
21002142242
6
Senary
2045140524
8
Octal
122062244
10
Decimal
21521572
12
Duodecimal
725a744
16
Hexadecimal
14864a4
20
Vigesimal
6ea3ic
36
Base36
cta5g
md5
0948b2e6b8b5875d8324ffc04192bff4
sha1
0a8393fe65cf490efe8e9a7fe318fab70f55c928
sha256
d46aa4ffa392e401dfb08bb6b8dcbc31bf7e517af484d5ed7ef7d86a4d7479d2
sha512
dab56f52c04543fc1812a846f76c7892f4bc67b8c5b1364eabb4333fe5476d045a78cf1961819fd69ff02b17665dd021001c86c3c31ba2271d0789472b50dd4b
ripemd-160
bbfc1a3f035bc269309c4273785fdf593a245a5f
Diameter
43043144
Circumference
135224024.97781
Area
1.4551167948448E+15
Volume
4.1755201158217E+22
Surface area
5.8204671793794E+15
Circumference
135224024.97781
Perimeter
86086288
Area
463178061351184
Diagonal
30436099.005989
Surface area
2779068368107104
Volume
9.9683199961899E+21
Space diagonal
37276456.162752
Perimeter
64564716
Area
2.0056198380288E+14
Altitude
18638228.081376
Surface area
2.0056198380288E+14
Volume
1.1747777777239E+21
Height
10145366.33533