21072557 is an odd 8-digits composite number following 21072556
and preceding 21072558 . In scientific notation, it is written as 2.1072557 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19156860 positive integers (up to 21072557) that are relatively prime to 21072557.
21072557 has 4 divisors, whose sum is 22988256
The reverse of 21072557 is 75527012
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million seventy-two thousand five hundred fifty-seven
Scientific notation
2.1072557 × 10^7
Engineering notation
2.1072557 × 10^6
Prime Factorization
11 × 1915687
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21072557
Product of the distinct prime numbers
The prime factorization of 21072557 is 11 × 1915687.
Since it has a total of 2 prime factors.
4 , 4 , 21 , 25 , 980 , 455 , 1548 , 9191 , 88573 , 67322 , 21716 , 425512 , 5688118 , 8140167 , 26569160 , 12182800 , 855376208 , 159081789 , 1188875895 , 4779171680
n×2
42145114
n×3
63217671
n×4
84290228
n×5
105362785
n÷2
10536278.5
n÷3
7024185.6666667
n÷3
5268139.25
n÷5
4214511.4
n2
444052658518249
n3
9.3573249576273E+21
n4
1.9718276353712E+29
n5
4.1551450240536E+36
2 √n
4590.4854863075
3 √n
276.20979725215
4 √n
67.753121598252
5 √n
29.157040993897
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
-21072556
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 21072557 can be divided by 4 positive divisors.
The sum of these divisors (counting 21072557) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011000101010101101
3
Ternary
1110122121010002
4
Quaternary
1100120222231
5
Quinary
20343310212
6
Senary
2031354045
8
Octal
120305255
10
Decimal
21072557
12
Duodecimal
7082925
16
Hexadecimal
1418aad
20
Vigesimal
6be17h
36
Base36
cjnot
md5
86c000fe3f8e47b3d878e59642cb0a2e
sha1
1ac64f94a2d9929d96d9cf9df1e6b3d781dfa253
sha256
d04a6f14c6d3098408fd93c54b7a378aa159046939f8ab70e26bd6c6315a5961
sha512
235a4d4f11f11d655e16107b2ff1cd5ff31872f3d998def814e5a180472eac8aef474d23f61d324292c00257a2451c01bc7381983a256476d02d2637bd633c35
ripemd-160
5c75f42c5bd52fec23bf2289175479319ffd8f37
Diameter
42145114
Circumference
132402780.5271
Area
1.3950325698079E+15
Volume
3.9195871125513E+22
Surface area
5.5801302792318E+15
Circumference
132402780.5271
Perimeter
84290228
Area
444052658518249
Diagonal
29801095.90328
Surface area
2664315951109494
Volume
9.3573249576273E+21
Space diagonal
36498739.369391
Perimeter
63217671
Area
1.9228044144741E+14
Altitude
18249369.684696
Surface area
1.9228044144741E+14
Volume
1.1027713218841E+21
Height
9933698.6344267