21308910 is an even 8-digits composite number following 21308909
and preceding 21308911 . In scientific notation, it is written as 2.1308910 × 10^7.
The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors.
There are 4701312 positive integers (up to 21308910) that are relatively prime to 21308910.
21308910 has 32 divisors, whose sum is 45360000
The reverse of 21308910 is 01980312
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million three hundred eight thousand nine hundred ten
Scientific notation
2.1308910 × 10^7
Engineering notation
2.1308910 × 10^6
Prime Factorization
2 × 3 × 35 × 29 × 3499
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21308910
Product of the distinct prime numbers
The prime factorization of 21308910 is 2 × 3 × 35 × 29 × 3499.
Since it has a total of 5 prime factors.
3 , 6 , 81 , 74 , 649 , 813 , 5849 , 5695 , 8640 , 99534 , 710388 , 976301 , 552601 , 8810327 , 4714685 , 82992870 , 922454228 , 687189507 , 7822043721 , 2205791934
n×2
42617820
n×3
63926730
n×4
85235640
n×5
106544550
n÷2
10654455
n÷3
7102970
n÷3
5327227.5
n÷5
4261782
n2
454069645388100
n3
9.6757292073069E+21
n4
2.0617924286287E+29
n5
4.3934549300331E+36
2 √n
4616.1574929805
3 √n
277.23863061543
4 √n
67.942310035651
5 √n
29.222155472103
1 , 2 , 3 , 6 , 29 , 35 , 58 , 70 , 87 , 105 , 174 , 210 , 1015 , 2030 , 3045 , 3499 , 6090 , 6998 , 10497 , 20994 , 101471 , 122465 , 202942 , 244930 , 304413 , 367395 , 608826 , 734790 , 3551485 , 7102970 , 10654455 , 21308910
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21308909
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21308910 can be divided by 32 positive divisors.
The sum of these divisors (counting 21308910) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010001010010010111101110
3
Ternary
1111002121022220
4
Quaternary
1101102113232
5
Quinary
20423341120
6
Senary
2040420210
8
Octal
121222756
10
Decimal
21308910
12
Duodecimal
7177666
16
Hexadecimal
14525ee
20
Vigesimal
6d3c5a
36
Base36
coq26
md5
b72c9789d2218aee70c49812155c8b78
sha1
37a334cd59838ac80ec8a2ec5533e62ea8dade11
sha256
e83048e308625adaaba9ab093105beb6ce39a639d8cdb59083c72298319f59c8
sha512
bb5c88a7d08a8f7d0ce586c1f86836371cae800e60c298df30029b9976e39a563044b40a25e5371b09c8a3703686c099e6384fae51939b5e4e0ded0cc18d0d22
ripemd-160
61a2e8aa9ac7efa89632de1dde8051593912d67e
Diameter
42617820
Circumference
133887830.22401
Area
1.4265018621694E+15
Volume
4.0529599727733E+22
Surface area
5.7060074486775E+15
Circumference
133887830.22401
Perimeter
85235640
Area
454069645388100
Diagonal
30135349.521388
Surface area
2724417872328600
Volume
9.6757292073069E+21
Space diagonal
36908114.773913
Perimeter
63926730
Area
1.9661792399674E+14
Altitude
18454057.386956
Surface area
1.9661792399674E+14
Volume
1.1402956225686E+21
Height
10045116.507129