21221657 is an odd 8-digits prime number following 21221656
and preceding 21221658 . In scientific notation, it is written as 2.1221657 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 21221656 positive integers (up to 21221657) that are relatively prime to 21221657.
21221657 has 2 divisors, whose sum is 21221658
The reverse of 21221657 is 75612212
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million two hundred twenty-one thousand six hundred fifty-seven
Scientific notation
2.1221657 × 10^7
Engineering notation
2.1221657 × 10^6
Prime Factorization
21221657
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21221657
Product of the distinct prime numbers
The prime factorization of 21221657 is 21221657.
Since it has a total of 1 prime factors.
4 , 10 , 70 , 72 , 709 , 574 , 9788 , 4169 , 60066 , 51966 , 632117 , 713192 , 633794 , 445360 , 64366585 , 62059134 , 34295150 , 610722501 , 3274364745 , 7761540141
n×2
42443314
n×3
63664971
n×4
84886628
n×5
106108285
n÷2
10610828.5
n÷3
7073885.6666667
n÷3
5305414.25
n÷5
4244331.4
n2
450358725825649
n3
9.557358406429E+21
n4
2.028229819273E+29
n5
4.3042397541784E+36
2 √n
4606.6969728863
3 √n
276.85971253026
4 √n
67.872652614189
5 √n
29.198185150496
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21221658
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10610829
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4606.697081424
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999057567
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21221657 can be divided by 2 positive divisors.
The sum of these divisors (counting 21221657) is 21221658, the average is 10610829.
Base
System
Value
2
Binary
1010000111101000100011001
3
Ternary
1110221011122022
4
Quaternary
1100331010121
5
Quinary
20413043112
6
Senary
2034504225
8
Octal
120750431
10
Decimal
21221657
12
Duodecimal
7135075
16
Hexadecimal
143d119
20
Vigesimal
6cce2h
36
Base36
cmuqh
md5
cd9b0262cdcf87461c8ef1b067ef9eee
sha1
a17da9a06cb4e8df20006cf77c4453a7c068439e
sha256
14e66f24212d9f814f6edde3a2397a4f716342c775e28b1ca7de0f69e2423b92
sha512
b1df167e8a4ee58320fbb44fbf213267b2e55e21d6ead6987764b4133bd68bb8d890ba457cdfabab947e9a6181cf45fae6357b26a062269de77a7fde51c67e07
ripemd-160
708edb9666a2eb779db47dfe5f9edb7e7b998815
Diameter
42443314
Circumference
133339603.4564
Area
1.4148436645339E+15
Volume
4.0033769276483E+22
Surface area
5.6593746581357E+15
Circumference
133339603.4564
Perimeter
84886628
Area
450358725825649
Diagonal
30011955.14543
Surface area
2702152354953894
Volume
9.557358406429E+21
Space diagonal
36756988.1448
Perimeter
63664971
Area
1.950110486905E+14
Altitude
18378494.0724
Surface area
1.950110486905E+14
Volume
1.1263454899027E+21
Height
10003985.048477