21072578 is an even 8-digits composite number following 21072577
and preceding 21072579 . In scientific notation, it is written as 2.1072578 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 10536288 positive integers (up to 21072578) that are relatively prime to 21072578.
21072578 has 4 divisors, whose sum is 31608870
The reverse of 21072578 is 87527012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million seventy-two thousand five hundred seventy-eight
Scientific notation
2.1072578 × 10^7
Engineering notation
2.1072578 × 10^6
Prime Factorization
2 × 10536289
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21072578
Product of the distinct prime numbers
The prime factorization of 21072578 is 2 × 10536289.
Since it has a total of 2 prime factors.
9 , 8 , 32 , 80 , 78 , 854 , 1528 , 1936 , 91410 , 68402 , 265536 , 612896 , 5838786 , 2854786 , 63665520 , 51274669 , 745684327 , 672454383 , 573952272 , 5942763895
n×2
42145156
n×3
63217734
n×4
84290312
n×5
105362890
n÷2
10536289
n÷3
7024192.6666667
n÷3
5268144.5
n÷5
4214515.6
n2
444053543566084
n3
9.3573529329727E+21
n4
1.971835495536E+29
n5
4.155165728285E+36
2 √n
4590.4877736467
3 √n
276.20988900504
4 √n
67.753138478204
5 √n
29.157046805224
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
-21072577
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 21072578 can be divided by 4 positive divisors.
The sum of these divisors (counting 21072578) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011000101011000010
3
Ternary
1110122121010212
4
Quaternary
1100120223002
5
Quinary
20343310303
6
Senary
2031354122
8
Octal
120305302
10
Decimal
21072578
12
Duodecimal
7082942
16
Hexadecimal
1418ac2
20
Vigesimal
6be18i
36
Base36
cjnpe
md5
2d04d02ead0ebd24bfac1a343b4c15c7
sha1
fab8be26a0089c4bd530f49b2b76dd13d84a4a1c
sha256
24e6ef84772a5b059df4771a89df1ea495863a2bb75e444fe695a7d887e2337a
sha512
e541b4566f27c4e6c9fb5945bc241207fc88fd627dd528d971c4e1a0c25c6980cc69c9f299438b3f8cb36070ba6c921ec08e6829c626659fc8e28500616fe9e0
ripemd-160
467159ba05105e59ef8ac4b675a890d47eced4f8
Diameter
42145156
Circumference
132402912.474
Area
1.3950353502677E+15
Volume
3.9195988308365E+22
Surface area
5.5801414010709E+15
Circumference
132402912.474
Perimeter
84290312
Area
444053543566084
Diagonal
29801125.601765
Surface area
2664321261396504
Volume
9.3573529329727E+21
Space diagonal
36498775.742458
Perimeter
63217734
Area
1.9228082468436E+14
Altitude
18249387.871229
Surface area
1.9228082468436E+14
Volume
1.1027746188101E+21
Height
9933708.5339216