21154493 is an odd 8-digits composite number following 21154492
and preceding 21154494 . In scientific notation, it is written as 2.1154493 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 6 positive divisors.
There are 20471160 positive integers (up to 21154493) that are relatively prime to 21154493.
21154493 has 6 divisors, whose sum is 21859902
The reverse of 21154493 is 39445112
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million one hundred fifty-four thousand four hundred ninety-three
Scientific notation
2.1154493 × 10^7
Engineering notation
2.1154493 × 10^6
Prime Factorization
31 × 31 × 22013
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
682403
Product of the distinct prime numbers
The prime factorization of 21154493 is 31 × 31 × 22013.
Since it has a total of 3 prime factors.
2 , 1 , 60 , 7 , 975 , 338 , 3048 , 2828 , 91039 , 86781 , 817226 , 703224 , 6079909 , 6307487 , 11174720 , 70430481 , 494823702 , 812391618 , 8751678031 , 3554620111
n×2
42308986
n×3
63463479
n×4
84617972
n×5
105772465
n÷2
10577246.5
n÷3
7051497.6666667
n÷3
5288623.25
n÷5
4230898.6
n2
447512574087049
n3
9.4669016159365E+21
n4
2.0026750396602E+29
n5
4.2365575107766E+36
2 √n
4599.4013740921
3 √n
276.56732792704
4 √n
67.818886558923
5 √n
29.17967995791
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
-21154492
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 21154493 can be divided by 6 positive divisors.
The sum of these divisors (counting 21154493) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000101100101010111101
3
Ternary
1110210202111202
4
Quaternary
1100230222331
5
Quinary
20403420433
6
Senary
2033225245
8
Octal
120545275
10
Decimal
21154493
12
Duodecimal
7102225
16
Hexadecimal
142cabd
20
Vigesimal
6c464d
36
Base36
clewt
md5
03d1de75d6020e9618553dd36cc5c1e2
sha1
93a57499c9604767183eb5806fe86a791d55e128
sha256
adce0431019e025d396b7e59c8956dc136231982af484e1168402e7eeb188b5f
sha512
48c5fb5e0a5515199ab385fcd59fa1c893df931d9bfbca6bda6be2a41dbcbe0e759665055d435ed092dadf25694b939e2cafa2b48b785eba7a89d02414aba79d
ripemd-160
f1283a87d5d648684ea87494945d7763f07396ee
Diameter
42308986
Circumference
132917599.59843
Area
1.4059022151409E+15
Volume
3.9654864758511E+22
Surface area
5.6236088605637E+15
Circumference
132917599.59843
Perimeter
84617972
Area
447512574087049
Diagonal
29916970.905727
Surface area
2685075444522294
Volume
9.4669016159365E+21
Space diagonal
36640656.68436
Perimeter
63463479
Area
1.9377862883618E+14
Altitude
18320328.34218
Surface area
1.9377862883618E+14
Volume
1.1156850549091E+21
Height
9972323.6352422