21485265 is an odd 8-digits composite number following 21485264
and preceding 21485266 . In scientific notation, it is written as 2.1485265 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 11458800 positive integers (up to 21485265) that are relatively prime to 21485265.
21485265 has 4 divisors, whose sum is 22917632
The reverse of 21485265 is 56258412
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred eighty-five thousand two hundred sixty-five
Scientific notation
2.1485265 × 10^7
Engineering notation
2.1485265 × 10^6
Prime Factorization
15 × 1432351
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21485265
Product of the distinct prime numbers
The prime factorization of 21485265 is 15 × 1432351.
Since it has a total of 2 prime factors.
7 , 5 , 85 , 59 , 794 , 893 , 9321 , 1063 , 80557 , 87753 , 683176 , 27641 , 5411519 , 1822828 , 40168764 , 20132322 , 702233281 , 91100552 , 9720480511 , 3797750914
n×2
42970530
n×3
64455795
n×4
85941060
n×5
107426325
n÷2
10742632.5
n÷3
7161755
n÷3
5371316.25
n÷5
4297053
n2
461616612120225
n3
9.9179552398052E+21
n4
2.1308989658535E+29
n5
4.5782928969589E+36
2 √n
4635.220059501
3 √n
278.00134999258
4 √n
68.082450451647
5 √n
29.270365325733
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
-21485264
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 21485265 can be divided by 4 positive divisors.
The sum of these divisors (counting 21485265) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111101011011010001
3
Ternary
1111102120020120
4
Quaternary
1101331123101
5
Quinary
21000012030
6
Senary
2044300453
8
Octal
121753321
10
Decimal
21485265
12
Duodecimal
7241729
16
Hexadecimal
147d6d1
20
Vigesimal
6e5d35
36
Base36
csi4x
md5
a649bfab851b5bfef8c1bd3e9c25968f
sha1
218b55ce871bee030b5f6530c2530a0dd90087e9
sha256
20136befa388c6f9d6b4742d3662e25e831ed78719b0886d76afe0592ccdcf2a
sha512
32de0b9b0ff6c5b464c59782ffa36b8302bb4c79fa8d31c2b9039014b8bd2d711cc43d77fada7bbd087dbfa59551f9d1dac79864c6e29637b50a7474795fb77d
ripemd-160
5b1d295a2b1a61eed0a1884e848320b0329f0505
Diameter
42970530
Circumference
134995901.36886
Area
1.4502113574119E+15
Volume
4.1544233760006E+22
Surface area
5.8008454296476E+15
Circumference
134995901.36886
Perimeter
85941060
Area
461616612120225
Diagonal
30384753.15418
Surface area
2769699672721350
Volume
9.9179552398052E+21
Space diagonal
37213570.594081
Perimeter
64455795
Area
1.9988585645251E+14
Altitude
18606785.297041
Surface area
1.9988585645251E+14
Volume
1.1688422342618E+21
Height
10128251.051393