21492494 is an even 8-digits composite number following 21492493
and preceding 21492495 . In scientific notation, it is written as 2.1492494 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 10746246 positive integers (up to 21492494) that are relatively prime to 21492494.
21492494 has 4 divisors, whose sum is 32238744
The reverse of 21492494 is 49429412
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million four hundred ninety-two thousand four hundred ninety-four
Scientific notation
2.1492494 × 10^7
Engineering notation
2.1492494 × 10^6
Prime Factorization
2 × 10746247
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21492494
Product of the distinct prime numbers
The prime factorization of 21492494 is 2 × 10746247.
Since it has a total of 2 prime factors.
7 , 2 , 53 , 98 , 302 , 382 , 805 , 6172 , 60340 , 44491 , 516069 , 316160 , 2525331 , 8039289 , 61102076 , 83560867 , 40847895 , 286076232 , 788509976 , 9882581967
n×2
42984988
n×3
64477482
n×4
85969976
n×5
107462470
n÷2
10746247
n÷3
7164164.6666667
n÷3
5373123.5
n÷5
4298498.8
n2
461927298340036
n3
9.9279696880094E+21
n4
2.1337682895172E+29
n5
4.586000215984E+36
2 √n
4635.9997842968
3 √n
278.0325255666
4 √n
68.088176538198
5 √n
29.272334740576
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
-21492493
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 21492494 can be divided by 4 positive divisors.
The sum of these divisors (counting 21492494) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111001100001110
3
Ternary
1111102221011022
4
Quaternary
1101333030032
5
Quinary
21000224434
6
Senary
2044354142
8
Octal
121771416
10
Decimal
21492494
12
Duodecimal
7245952
16
Hexadecimal
147f30e
20
Vigesimal
6e6b4e
36
Base36
csnpq
md5
56ed4e9aa8a970a141a468e4beac7603
sha1
d6f5a67955ee3308380cddfcab4ee6a624704117
sha256
6e2b325f7a57ae34c7b899b99b9c09b31e17142daf63da280141e1734bcec831
sha512
643aecef5cf3277e646d771b74268d70449f77d6821164e91eda8b663fd5753efbc5b633aec4bc2650cfae83f53582ba2d3f607b453badb237f7a6476151f302
ripemd-160
b4d2a17a73eabd71916a07d5de1bf7a9deabcbf7
Diameter
42984988
Circumference
135041322.51545
Area
1.4511874069576E+15
Volume
4.158618218255E+22
Surface area
5.8047496278306E+15
Circumference
135041322.51545
Perimeter
85969976
Area
461927298340036
Diagonal
30394976.504022
Surface area
2771563790040216
Volume
9.9279696880094E+21
Space diagonal
37226091.589369
Perimeter
64477482
Area
2.0002038753199E+14
Altitude
18613045.794685
Surface area
2.0002038753199E+14
Volume
1.170022448301E+21
Height
10131658.834674