21492957 is an odd 8-digits composite number following 21492956
and preceding 21492958 . In scientific notation, it is written as 2.1492957 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 14328636 positive integers (up to 21492957) that are relatively prime to 21492957.
21492957 has 4 divisors, whose sum is 28657280
The reverse of 21492957 is 75929412
Previous prime number is 3
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 fifty-seven
Scientific notation
2.1492957 × 10^7
Engineering notation
2.1492957 × 10^6
Prime Factorization
3 × 7164319
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21492957
Product of the distinct prime numbers
The prime factorization of 21492957 is 3 × 7164319.
Since it has a total of 2 prime factors.
4 , 10 , 30 , 77 , 137 , 621 , 8534 , 5900 , 68017 , 13020 , 679141 , 606721 , 4947575 , 2452618 , 73794064 , 92318492 , 985086236 , 957102911 , 3733363437 , 1067317711
n×2
42985914
n×3
64478871
n×4
85971828
n×5
107464785
n÷2
10746478.5
n÷3
7164319
n÷3
5373239.25
n÷5
4298591.4
n2
461947200603849
n3
9.9286113188489E+21
n4
2.1339521614573E+29
n5
4.5864942046259E+36
2 √n
4636.0497193192
3 √n
278.03452204864
4 √n
68.088543230996
5 √n
29.272460858785
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21492956
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21492957 can be divided by 4 positive divisors.
The sum of these divisors (counting 21492957) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111010011011101
3
Ternary
1111102221210110
4
Quaternary
1101333103131
5
Quinary
21000233312
6
Senary
2044400233
8
Octal
121772335
10
Decimal
21492957
12
Duodecimal
7246079
16
Hexadecimal
147f4dd
20
Vigesimal
6e6c7h
36
Base36
cso2l
md5
45db7b3dd528490b1e2cd8b9de53574b
sha1
ef328226599d718e93ce30d55452cb0ea6b31f74
sha256
0203b7a8c72626fb372d7015d64922e68115470acbfab47a00296e463afeb578
sha512
094acee151a1215e03dc35998aea0e6fe5eaf35794e507bf45b0158a09989be768899f2c2eda2cf71ba751539e523d771c8100ce3cc7a53a7e2326c338c28957
ripemd-160
3837d3968464b499d6355fe1af59b7c191a9a61e
Diameter
42985914
Circumference
135044231.63024
Area
1.4512499317634E+15
Volume
4.1588869839526E+22
Surface area
5.8049997270537E+15
Circumference
135044231.63024
Perimeter
85971828
Area
461947200603849
Diagonal
30395631.284902
Surface area
2771683203623094
Volume
9.9286113188489E+21
Space diagonal
37226893.528893
Perimeter
64478871
Area
2.0002900546502E+14
Altitude
18613446.764447
Surface area
2.0002900546502E+14
Volume
1.1700980652206E+21
Height
10131877.094967