21354989 is an odd 8-digits prime number following 21354988
and preceding 21354990 . In scientific notation, it is written as 2.1354989 × 10^7.
The sum of its digits is 41. It has a total of 1 prime factors and 2 positive divisors.
There are 21354988 positive integers (up to 21354989) that are relatively prime to 21354989.
21354989 has 2 divisors, whose sum is 21354990
The reverse of 21354989 is 98945312
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million three hundred fifty-four thousand nine hundred eighty-nine
Scientific notation
2.1354989 × 10^7
Engineering notation
2.1354989 × 10^6
Prime Factorization
21354989
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21354989
Product of the distinct prime numbers
The prime factorization of 21354989 is 21354989.
Since it has a total of 1 prime factors.
1 , 9 , 67 , 68 , 464 , 46 , 8564 , 5697 , 10283 , 36181 , 437651 , 975957 , 3009835 , 8050830 , 8059871 , 39956194 , 469236439 , 328705199 , 6584903895 , 547885183
n×2
42709978
n×3
64064967
n×4
85419956
n×5
106774945
n÷2
10677494.5
n÷3
7118329.6666667
n÷3
5338747.25
n÷5
4270997.8
n2
456035555190121
n3
9.7386342646939E+21
n4
2.0796842759756E+29
n5
4.4411634836932E+36
2 √n
4621.1458535735
3 √n
277.43832300782
4 √n
67.979010389778
5 √n
29.234782720543
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21354990
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10677495
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4621.1459617718
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999063451
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21354989 can be divided by 2 positive divisors.
The sum of these divisors (counting 21354989) is 21354990, the average is 10677495.
Base
System
Value
2
Binary
1010001011101100111101101
3
Ternary
1111011221112112
4
Quaternary
1101131213231
5
Quinary
20431324424
6
Senary
2041413405
8
Octal
121354755
10
Decimal
21354989
12
Duodecimal
719a265
16
Hexadecimal
145d9ed
20
Vigesimal
6d9799
36
Base36
cppm5
md5
297bb48c78818e3b82295e6c1271c7f0
sha1
056ba25e44412feddd12d91da0c06bb813bffc97
sha256
0d19d0e877f1c0c52afa65185b6bf758b78cf210e34fcf2b48ce620dde620379
sha512
2d2462db5a6fbefa36fc18e352746439e605e6ed90a87900d7041d09c04ad206967232478e0e4687c2b42b3e3a6068056c5f39de1956478358e760ee035bfb40
ripemd-160
bea189916369d392c0a23b6f16a9a40a0e38cd72
Diameter
42709978
Circumference
134177353.11978
Area
1.432677949961E+15
Volume
4.0793095815947E+22
Surface area
5.7307117998441E+15
Circumference
134177353.11978
Perimeter
85419956
Area
456035555190121
Diagonal
30200515.068128
Surface area
2736213331140726
Volume
9.7386342646939E+21
Space diagonal
36987925.943074
Perimeter
64064967
Area
1.9746918791179E+14
Altitude
18493962.971537
Surface area
1.9746918791179E+14
Volume
1.1477090546768E+21
Height
10066838.356043