21542451 is an odd 8-digits composite number following 21542450
and preceding 21542452 . In scientific notation, it is written as 2.1542451 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 11585664 positive integers (up to 21542451) that are relatively prime to 21542451.
21542451 has 8 divisors, whose sum is 28965120
The reverse of 21542451 is 15424512
Previous prime number is 119
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million five hundred forty-two thousand four hundred fifty-one
Scientific notation
2.1542451 × 10^7
Engineering notation
2.1542451 × 10^6
Prime Factorization
3 × 119 × 60343
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21542451
Product of the distinct prime numbers
The prime factorization of 21542451 is 3 × 119 × 60343.
Since it has a total of 3 prime factors.
2 , 2 , 7 , 59 , 499 , 634 , 2980 , 8743 , 55897 , 92442 , 587526 , 888598 , 9723090 , 9897166 , 25502713 , 29381528 , 634805471 , 757504398 , 4661303919 , 1283342042
n×2
43084902
n×3
64627353
n×4
86169804
n×5
107712255
n÷2
10771225.5
n÷3
7180817
n÷3
5385612.75
n÷5
4308490.2
n2
464077195087401
n3
9.9973602353878E+21
n4
2.1536764300019E+29
n5
4.6395468963171E+36
2 √n
4641.3845994487
3 √n
278.24777781654
4 √n
68.127708015526
5 √n
29.285930187265
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21542450
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21542451 can be divided by 8 positive divisors.
The sum of these divisors (counting 21542451) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001011011000110011
3
Ternary
1111112110200120
4
Quaternary
1102023120303
5
Quinary
21003324301
6
Senary
2045421323
8
Octal
122133063
10
Decimal
21542451
12
Duodecimal
726a843
16
Hexadecimal
148b633
20
Vigesimal
6ecg2b
36
Base36
ctq9f
md5
56eed6ee519837408d57702f5c9f2344
sha1
f897453664a8036e69fdc03866e9fe17618c8edc
sha256
b338f19c689cedccf10e097ecb376e6c67397b8c9435d8fc94133c599b3920a5
sha512
e10ab520f54555aacbe80564d48e9597cc3a3bbe7f03b6e6925278e768d5ddbe14c9ef391e9e1c7831847d1598ee31b8fbbbf77f1ec1743aba8ad37de89fde5c
ripemd-160
dda8076a9dd12f0c29b43b0a35e6a42e71facde9
Diameter
43084902
Circumference
135355211.60384
Area
1.4579415067851E+15
Volume
4.1876844627713E+22
Surface area
5.8317660271405E+15
Circumference
135355211.60384
Perimeter
86169804
Area
464077195087401
Diagonal
30465626.370958
Surface area
2784463170524406
Volume
9.9973602353878E+21
Space diagonal
37312619.651563
Perimeter
64627353
Area
2.0095132013136E+14
Altitude
18656309.825781
Surface area
2.0095132013136E+14
Volume
1.1782002027346E+21
Height
10155208.790319