21542458 is an even 8-digits composite number following 21542457
and preceding 21542459 . In scientific notation, it is written as 2.1542458 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors.
There are 8925840 positive integers (up to 21542458) that are relatively prime to 21542458.
21542458 has 24 divisors, whose sum is 37799892
The reverse of 21542458 is 85424512
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million five hundred forty-two thousand four hundred fifty-eight
Scientific notation
2.1542458 × 10^7
Engineering notation
2.1542458 × 10^6
Prime Factorization
2 × 217 × 7 × 7 × 1013
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3077494
Product of the distinct prime numbers
The prime factorization of 21542458 is 2 × 217 × 7 × 7 × 1013.
Since it has a total of 5 prime factors.
9 , 4 , 73 , 10 , 785 , 480 , 5353 , 8145 , 34718 , 42605 , 250000 , 626101 , 5763931 , 5252502 , 53836906 , 23580937 , 124660262 , 117645700 , 249694450 , 6504576614
n×2
43084916
n×3
64627374
n×4
86169832
n×5
107712290
n÷2
10771229
n÷3
7180819.3333333
n÷3
5385614.5
n÷5
4308491.6
n2
464077496681764
n3
9.997369981012E+21
n4
2.1536792292641E+29
n5
4.6395544341895E+36
2 √n
4641.385353534
3 √n
278.24780795446
4 √n
68.127713549876
5 √n
29.285932090498
1 , 2 , 7 , 14 , 49 , 98 , 217 , 434 , 1013 , 1519 , 2026 , 3038 , 7091 , 10633 , 14182 , 21266 , 49637 , 99274 , 219821 , 439642 , 1538747 , 3077494 , 10771229 , 21542458
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21542457
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21542458 can be divided by 24 positive divisors.
The sum of these divisors (counting 21542458) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010010001011011000111010
3
Ternary
1111112110200211
4
Quaternary
1102023120322
5
Quinary
21003324313
6
Senary
2045421334
8
Octal
122133072
10
Decimal
21542458
12
Duodecimal
726a84a
16
Hexadecimal
148b63a
20
Vigesimal
6ecg2i
36
Base36
ctq9m
md5
f5b648e52988b21d9535d2937898ab1e
sha1
5f23fb361fa9cdac726c5e04920b2749a27ab72c
sha256
5573369bf133742b720cfaea4d1c4ab7816286ea9d55a7ba9b27c4c726f16e3b
sha512
c53aa610c72346d2823bb40db3d7c42c3366a81ff9d21ca2a849acd9df802e8b99b2e9b736a87ef16a1bb1f37fb3e2fbd4a3573cd1f63f52a522cc00669dd8a2
ripemd-160
6e1ee3735f124335dcf224e06a9de278da5dd06a
Diameter
43084916
Circumference
135355255.58613
Area
1.4579424542718E+15
Volume
4.1876885450089E+22
Surface area
5.8317698170871E+15
Circumference
135355255.58613
Perimeter
86169832
Area
464077496681764
Diagonal
30465636.270453
Surface area
2784464980090584
Volume
9.997369981012E+21
Space diagonal
37312631.775919
Perimeter
64627374
Area
2.0095145072555E+14
Altitude
18656315.887959
Surface area
2.0095145072555E+14
Volume
1.1782013512674E+21
Height
10155212.090151