21291258 is an even 8-digits composite number following 21291257
and preceding 21291259 . In scientific notation, it is written as 2.1291258 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 7086240 positive integers (up to 21291258) that are relatively prime to 21291258.
21291258 has 16 divisors, whose sum is 42647616
The reverse of 21291258 is 85219212
Previous prime number is 761
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million two hundred ninety-one thousand two hundred fifty-eight
Scientific notation
2.1291258 × 10^7
Engineering notation
2.1291258 × 10^6
Prime Factorization
2 × 3 × 761 × 4663
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21291258
Product of the distinct prime numbers
The prime factorization of 21291258 is 2 × 3 × 761 × 4663.
Since it has a total of 4 prime factors.
6 , 6 , 75 , 35 , 402 , 168 , 6227 , 623 , 73208 , 28771 , 324014 , 897650 , 351967 , 77823 , 47146195 , 63309463 , 838470185 , 741409580 , 419167443 , 387137052
n×2
42582516
n×3
63873774
n×4
85165032
n×5
106456290
n÷2
10645629
n÷3
7097086
n÷3
5322814.5
n÷5
4258251.6
n2
453317667222564
n3
9.6517034087938E+21
n4
2.0549690741611E+29
n5
4.3752876739985E+36
2 √n
4614.2451170262
3 √n
277.16205594545
4 √n
67.928235050134
5 √n
29.217312422921
1 , 2 , 3 , 6 , 761 , 1522 , 2283 , 4566 , 4663 , 9326 , 13989 , 27978 , 3548543 , 7097086 , 10645629 , 21291258
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21291257
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21291258 can be divided by 16 positive divisors.
The sum of these divisors (counting 21291258) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001001110000011111010
3
Ternary
1111001201010010
4
Quaternary
1101032003322
5
Quinary
20422310013
6
Senary
2040202350
8
Octal
121160372
10
Decimal
21291258
12
Duodecimal
71693b6
16
Hexadecimal
144e0fa
20
Vigesimal
6d182i
36
Base36
cocfu
md5
7fb36209fe0b72d8f5b586a20331fefe
sha1
5ee2a99c4586146dd635b3d1e459cd838d3e08fc
sha256
564c3cbe68b138401bd066870372d20cdd9fa772db1fb02cce8ed1992d698a56
sha512
10eb58bd9fcdd539f947fa8f44b8a419b78a0de63edbd5da62971e57d02b5867e42b753e4a989758815a511ca8d0ea5eb4fc9977651f102e212def59b4705d9a
ripemd-160
96bd1c55a7dbfb01c6bcc00dc56e5d549006796f
Diameter
42582516
Circumference
133776919.43697
Area
1.4241394530889E+15
Volume
4.0428960698259E+22
Surface area
5.6965578123555E+15
Circumference
133776919.43697
Perimeter
85165032
Area
453317667222564
Diagonal
30110385.823585
Surface area
2719906003335384
Volume
9.6517034087938E+21
Space diagonal
36877540.613057
Perimeter
63873774
Area
1.9629230789952E+14
Altitude
18438770.306529
Surface area
1.9629230789952E+14
Volume
1.1374641550599E+21
Height
10036795.274528