21492541 is an odd 8-digits composite number following 21492540
and preceding 21492542 . In scientific notation, it is written as 2.1492541 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 18374688 positive integers (up to 21492541) that are relatively prime to 21492541.
21492541 has 8 divisors, whose sum is 24626240
The reverse of 21492541 is 14529412
Previous prime number is 409
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred ninety-two thousand five hundred forty-one
Scientific notation
2.1492541 × 10^7
Engineering notation
2.1492541 × 10^6
Prime Factorization
7 × 409 × 7507
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492541
Product of the distinct prime numbers
The prime factorization of 21492541 is 7 × 409 × 7507.
Since it has a total of 3 prime factors.
4 , 4 , 91 , 51 , 478 , 470 , 8756 , 2819 , 14729 , 49384 , 142566 , 601116 , 3837143 , 7058114 , 45663527 , 79163712 , 260526928 , 944235150 , 7720626957 , 3564194292
n×2
42985082
n×3
64477623
n×4
85970164
n×5
107462705
n÷2
10746270.5
n÷3
7164180.3333333
n÷3
5373135.25
n÷5
4298508.2
n2
461929318636681
n3
9.9280348199009E+21
n4
2.1337869541615E+29
n5
4.5860503597581E+36
2 √n
4636.0048533193
3 √n
278.03272823455
4 √n
68.088213762143
5 √n
29.272347543172
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
-21492540
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 21492541 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492541) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111001100111101
3
Ternary
1111102221020001
4
Quaternary
1101333030331
5
Quinary
21000230131
6
Senary
2044354301
8
Octal
121771475
10
Decimal
21492541
12
Duodecimal
7245991
16
Hexadecimal
147f33d
20
Vigesimal
6e6b71
36
Base36
csnr1
md5
f5c845bb7d25360fee86ea33664d42c4
sha1
91ed92a4cb7cc84b31d2c5ac68f1de4ab788d02e
sha256
5bb4194317d11dff199fc0c478364aa4c664ccf5e4a5b25e9b1ef01059aecae5
sha512
8a3f5bed2505a9b5104d1b4b6669ee45fe9a08ca92b2fb8d3ae4157d36f9d4fb218e3b8883fcf5b406c8b6be3b08a7488512885f848c00fa36a28880c0e94c73
ripemd-160
919a43687e5199835dbeb34da8e47c80a91ded1b
Diameter
42985082
Circumference
135041617.82515
Area
1.4511937539067E+15
Volume
4.1586455006379E+22
Surface area
5.8047750156269E+15
Circumference
135041617.82515
Perimeter
85970164
Area
461929318636681
Diagonal
30395042.97206
Surface area
2771575911820086
Volume
9.9280348199009E+21
Space diagonal
37226172.995757
Perimeter
64477623
Area
2.000212623461E+14
Altitude
18613086.497879
Surface area
2.000212623461E+14
Volume
1.170030124168E+21
Height
10131680.990687