21478071 is an odd 8-digits composite number following 21478070
and preceding 21478072 . In scientific notation, it is written as 2.1478071 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 13759200 positive integers (up to 21478071) that are relatively prime to 21478071.
21478071 has 16 divisors, whose sum is 29769728
The reverse of 21478071 is 17087412
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred seventy-eight thousand seventy-one
Scientific notation
2.1478071 × 10^7
Engineering notation
2.1478071 × 10^6
Prime Factorization
3 × 31 × 157 × 1471
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21478071
Product of the distinct prime numbers
The prime factorization of 21478071 is 3 × 31 × 157 × 1471.
Since it has a total of 4 prime factors.
10 , 6 , 79 , 55 , 67 , 100 , 593 , 5443 , 39189 , 72352 , 660343 , 419547 , 3986123 , 7681799 , 53526687 , 33037549 , 406778712 , 280368187 , 2949768545 , 7969533365
n×2
42956142
n×3
64434213
n×4
85912284
n×5
107390355
n÷2
10739035.5
n÷3
7159357
n÷3
5369517.75
n÷5
4295614.2
n2
461307533881041
n3
9.9079959655319E+21
n4
2.1280464081541E+29
n5
4.5706331845628E+36
2 √n
4634.4439795945
3 √n
277.97031841552
4 √n
68.076750653909
5 √n
29.268404919693
1 , 3 , 31 , 93 , 157 , 471 , 1471 , 4413 , 4867 , 14601 , 45601 , 136803 , 230947 , 692841 , 7159357 , 21478071
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
-21478070
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 21478071 can be divided by 16 positive divisors.
The sum of these divisors (counting 21478071) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111011101010110111
3
Ternary
1111102012101010
4
Quaternary
1101323222313
5
Quinary
20444244241
6
Senary
2044203303
8
Octal
121735267
10
Decimal
21478071
12
Duodecimal
7239533
16
Hexadecimal
147bab7
20
Vigesimal
6e4f3b
36
Base36
cscl3
md5
374acdaa3b7d6b941e398235a425a97e
sha1
a64662c707c275858495587f29d2fdd4bb07f823
sha256
e56ccb06d726dfa17f85c4d0b030787e00abd3539fbf848f1daebfaae6a42caf
sha512
685e635d60a96746a13fdc270e99345296ea5ce49a9aa252a87f02e5cf0cb90eb5519f1e7c65dcbc4d8d26f3bde3e404a2ef007254cabebeaed4f155a7da8f43
ripemd-160
8f109110f681881f0b94472e1ce6350104e3e7a3
Diameter
42956142
Circumference
134950700.13376
Area
1.4492403594863E+15
Volume
4.1502516449483E+22
Surface area
5.7969614379452E+15
Circumference
134950700.13376
Perimeter
85912284
Area
461307533881041
Diagonal
30374579.301812
Surface area
2767845203286246
Volume
9.9079959655319E+21
Space diagonal
37201110.220572
Perimeter
64434213
Area
1.9975202164907E+14
Altitude
18600555.110286
Surface area
1.9975202164907E+14
Volume
1.1676685225328E+21
Height
10124859.767271