21557797 is an odd 8-digits composite number following 21557796
and preceding 21557798 . In scientific notation, it is written as 2.1557797 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 21348396 positive integers (up to 21557797) that are relatively prime to 21557797.
21557797 has 4 divisors, whose sum is 21767200
The reverse of 21557797 is 79775512
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-one million five hundred fifty-seven thousand seven hundred ninety-seven
Scientific notation
2.1557797 × 10^7
Engineering notation
2.1557797 × 10^6
Prime Factorization
103 × 209299
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21557797
Product of the distinct prime numbers
The prime factorization of 21557797 is 103 × 209299.
Since it has a total of 2 prime factors.
9 , 9 , 25 , 66 , 1000 , 150 , 107 , 7294 , 11286 , 4698 , 69507 , 304161 , 1487055 , 2357717 , 9081459 , 43888614 , 404045092 , 771229382 , 434495205 , 9165421113
n×2
43115594
n×3
64673391
n×4
86231188
n×5
107788985
n÷2
10778898.5
n÷3
7185932.3333333
n÷3
5389449.25
n÷5
4311559.4
n2
464738611493209
n3
1.0018740644632E+22
n4
2.1598197701264E+29
n5
4.6560956160971E+36
2 √n
4643.0374756187
3 √n
278.3138330807
4 √n
68.139837654772
5 √n
29.290101429239
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
-21557796
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 21557797 can be divided by 4 positive divisors.
The sum of these divisors (counting 21557797) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001111001000100101
3
Ternary
1111120020201221
4
Quaternary
1102033020211
5
Quinary
21004322142
6
Senary
2050020341
8
Octal
122171045
10
Decimal
21557797
12
Duodecimal
72776b1
16
Hexadecimal
148f225
20
Vigesimal
6eee9h
36
Base36
cu23p
md5
5aaa7c28dd88961884cd223462693b4e
sha1
9ceb79d7b0b4f67ab4bcf3e2ce45ba4be53938a5
sha256
915dec216ab403f68ebfb535feb81ad6c5798b49a6779dd755be186b7b74ee5f
sha512
c3be1d7526271a8eb9ef7dead20dc924fa271b9c85bc943fec9c6e0d4c7c299eccfdae764f64a74c34d265b044c3250514e28231914936f1ad3dc5769d2f033e
ripemd-160
a0b0b2fb77e83043f57b17446cd68c177d37043a
Diameter
43115594
Circumference
135451633.36556
Area
1.4600194077066E+15
Volume
4.1966402676532E+22
Surface area
5.8400776308263E+15
Circumference
135451633.36556
Perimeter
86231188
Area
464738611493209
Diagonal
30487328.892286
Surface area
2788431668959254
Volume
1.0018740644632E+22
Space diagonal
37339199.703256
Perimeter
64673391
Area
2.0123772183631E+14
Altitude
18669599.851628
Surface area
2.0123772183631E+14
Volume
1.1807199081281E+21
Height
10162442.964095