21909372 is an even 8-digits composite number following 21909371
and preceding 21909373 . In scientific notation, it is written as 2.1909372 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 12 positive divisors.
There are 7303120 positive integers (up to 21909372) that are relatively prime to 21909372.
21909372 has 12 divisors, whose sum is 51121896
The reverse of 21909372 is 27390912
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million nine hundred nine thousand three hundred seventy-two
Scientific notation
2.1909372 × 10^7
Engineering notation
2.1909372 × 10^6
Prime Factorization
2 × 2 × 3 × 1825781
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10954686
Product of the distinct prime numbers
The prime factorization of 21909372 is 2 × 2 × 3 × 1825781.
Since it has a total of 4 prime factors.
8 , 6 , 54 , 30 , 406 , 474 , 1178 , 8390 , 93685 , 79810 , 921383 , 517445 , 9822921 , 1713317 , 189143 , 91134262 , 404519387 , 116582562 , 4220261858 , 5584722363
n×2
43818744
n×3
65728116
n×4
87637488
n×5
109546860
n÷2
10954686
n÷3
7303124
n÷3
5477343
n÷5
4381874.4
n2
480020581434384
n3
1.0516949486302E+22
n4
2.304197586006E+29
n5
5.0483522073308E+36
2 √n
4680.7448125272
3 √n
279.81864106067
4 √n
68.415968987709
5 √n
29.385019676947
1 , 2 , 3 , 4 , 6 , 12 , 1825781 , 3651562 , 5477343 , 7303124 , 10954686 , 21909372
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21909371
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21909372 can be divided by 12 positive divisors.
The sum of these divisors (counting 21909372) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011100100111101111100
3
Ternary
1112020010000020
4
Quaternary
1103210331330
5
Quinary
21102044442
6
Senary
2101332140
8
Octal
123447574
10
Decimal
21909372
12
Duodecimal
7407050
16
Hexadecimal
14e4f7c
20
Vigesimal
6gid8c
36
Base36
d1ldo
md5
5849809c10bf2d94f5bbdeac39298fef
sha1
27b1aa1680e337a38988d038be90236ffb29f3e0
sha256
346b9bb0639d7b558c32cb7535a2634fb0e17a4e86e7d67d19f7c6452ef71cdb
sha512
a74fa99a3a43a856ae04ddea51c76cccd8acfb18682c71dfb2cf0d4253b56b7be41c7392e68bfaa4627b6b28d05033e1f89aac958463f7cc8662c543ccc06d6d
ripemd-160
f101ece7113ce798ff5d55e2983eae8f2b37feb9
Diameter
43818744
Circumference
137660644.23993
Area
1.5080291322062E+15
Volume
4.4053294992456E+22
Surface area
6.0321165288246E+15
Circumference
137660644.23993
Perimeter
87637488
Area
480020581434384
Diagonal
30984531.025477
Surface area
2880123488606304
Volume
1.0516949486302E+22
Space diagonal
37948145.465927
Perimeter
65728116
Area
2.0785500893078E+14
Altitude
18974072.732963
Surface area
2.0785500893078E+14
Volume
1.2394343831934E+21
Height
10328177.008492