21492939 is an odd 8-digits composite number following 21492938
and preceding 21492940 . In scientific notation, it is written as 2.1492939 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13106688 positive integers (up to 21492939) that are relatively prime to 21492939.
21492939 has 8 divisors, whose sum is 22243680
The reverse of 21492939 is 93929412
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million four hundred ninety-two thousand nine hundred thirty-nine
Scientific notation
2.1492939 × 10^7
Engineering notation
2.1492939 × 10^6
Prime Factorization
39 × 113 × 4877
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492939
Product of the distinct prime numbers
The prime factorization of 21492939 is 39 × 113 × 4877.
Since it has a total of 3 prime factors.
3 , 3 , 40 , 75 , 844 , 614 , 1261 , 7675 , 3240 , 95182 , 426948 , 567078 , 5826618 , 6108086 , 64486823 , 5048664 , 831627085 , 396199112 , 7267049993 , 9324985685
n×2
42985878
n×3
64478817
n×4
85971756
n×5
107464695
n÷2
10746469.5
n÷3
7164313
n÷3
5373234.75
n÷5
4298587.8
n2
461946426857721
n3
9.928586373721E+21
n4
2.1339450128662E+29
n5
4.5864749990887E+36
2 √n
4636.0477780109
3 √n
278.03444443216
4 √n
68.088528975231
5 √n
29.272455955742
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21492938
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21492939 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492939) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111010011001011
3
Ternary
1111102221202210
4
Quaternary
1101333103023
5
Quinary
21000233224
6
Senary
2044400203
8
Octal
121772313
10
Decimal
21492939
12
Duodecimal
7246063
16
Hexadecimal
147f4cb
20
Vigesimal
6e6c6j
36
Base36
cso23
md5
b3aeae5cfc732e480fcf2b8884186432
sha1
8fc6ea90ce9fd95dc35cf8c98fa844eeadc859ad
sha256
d5747ed747713092fef8c10a66a90f875542394f74af93a3d5a694aa5fa288cc
sha512
62cb59d00512c32776715448fbf5748d47267bb57e8f7983392e90ceb360ce94c43ebe828af6c8991724a70c9594e23bb5e9facf09a3ca17b0bdd141cff45bd9
ripemd-160
372ba6c0ce035791010bbaa49737c6920c02e71d
Diameter
42985878
Circumference
135044118.53291
Area
1.4512475009683E+15
Volume
4.1588765349618E+22
Surface area
5.8049900038731E+15
Circumference
135044118.53291
Perimeter
85971756
Area
461946426857721
Diagonal
30395605.829058
Surface area
2771678561146326
Volume
9.928586373721E+21
Space diagonal
37226862.351979
Perimeter
64478817
Area
2.0002867042312E+14
Altitude
18613431.175989
Surface area
2.0002867042312E+14
Volume
1.1700951254091E+21
Height
10131868.609686