21451572 is an even 8-digits composite number following 21451571
and preceding 21451573 . In scientific notation, it is written as 2.1451572 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 7150512 positive integers (up to 21451572) that are relatively prime to 21451572.
21451572 has 12 divisors, whose sum is 41711460
The reverse of 21451572 is 27515412
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million four hundred fifty-one thousand five hundred seventy-two
Scientific notation
2.1451572 × 10^7
Engineering notation
2.1451572 × 10^6
Prime Factorization
2 × 2 × 9 × 595877
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10725786
Product of the distinct prime numbers
The prime factorization of 21451572 is 2 × 2 × 9 × 595877.
Since it has a total of 4 prime factors.
5 , 1 , 50 , 38 , 722 , 144 , 9803 , 9370 , 3125 , 79851 , 88943 , 130694 , 987515 , 2313051 , 27608049 , 97266912 , 639244540 , 191074193 , 4630952193 , 3930605585
n×2
42903144
n×3
64354716
n×4
85806288
n×5
107257860
n÷2
10725786
n÷3
7150524
n÷3
5362893
n÷5
4290314.4
n2
460169941271184
n3
9.8713686274146E+21
n4
2.1175637484952E+29
n5
4.5425071215436E+36
2 √n
4631.5841782267
3 √n
277.85595422152
4 √n
68.055743168573
5 √n
29.261179256809
1 , 2 , 4 , 9 , 18 , 36 , 595877 , 1191754 , 2383508 , 5362893 , 10725786 , 21451572
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21451571
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21451572 can be divided by 12 positive divisors.
The sum of these divisors (counting 21451572) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001110101001100110100
3
Ternary
1111100212000200
4
Quaternary
1101311030310
5
Quinary
20442422242
6
Senary
2043440500
8
Octal
121651464
10
Decimal
21451572
12
Duodecimal
7226130
16
Hexadecimal
1475334
20
Vigesimal
6e18ic
36
Base36
crs50
md5
e6f1ad058f3155a05f8183cba96dd014
sha1
970beed1204f7bc2dfeb6760212c5e48ba4e4c4e
sha256
f29face5cb4c0ae58c9d2f6443ff574dcc19340b12f39eefa9be71523ff9908d
sha512
f615279d484deadc80a6eab53d026d336c8c8fdff41a706954972eabd877f6e0a100211f8f15bc221e2c89bcad09dabfe6f69545fa8b8387d3f2a68b7a2b1a7d
ripemd-160
9ec9e643f4369ebb1861f3e88c5aaec8e9f8b698
Diameter
42903144
Circumference
134784202.00631
Area
1.4456665069004E+15
Volume
4.134909221435E+22
Surface area
5.7826660276016E+15
Circumference
134784202.00631
Perimeter
85806288
Area
460169941271184
Diagonal
30337104.056623
Surface area
2761019647627104
Volume
9.8713686274146E+21
Space diagonal
37155212.606222
Perimeter
64354716
Area
1.9925942959942E+14
Altitude
18577606.303111
Surface area
1.9925942959942E+14
Volume
1.1633519493395E+21
Height
10112368.018874