21490929 is an odd 8-digits composite number following 21490928
and preceding 21490930 . In scientific notation, it is written as 2.1490929 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 13844160 positive integers (up to 21490929) that are relatively prime to 21490929.
21490929 has 16 divisors, whose sum is 24696000
The reverse of 21490929 is 92909412
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million four hundred ninety thousand nine hundred twenty-nine
Scientific notation
2.1490929 × 10^7
Engineering notation
2.1490929 × 10^6
Prime Factorization
9 × 41 × 139 × 419
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21490929
Product of the distinct prime numbers
The prime factorization of 21490929 is 9 × 41 × 139 × 419.
Since it has a total of 4 prime factors.
3 , 5 , 53 , 86 , 66 , 903 , 6372 , 6331 , 4550 , 59420 , 366513 , 641855 , 2102997 , 5625550 , 74774279 , 63418000 , 580805722 , 576678655 , 9477256843 , 4763075631
n×2
42981858
n×3
64472787
n×4
85963716
n×5
107454645
n÷2
10745464.5
n÷3
7163643
n÷3
5372732.25
n÷5
4298185.8
n2
461860029283041
n3
9.9258010972598E+21
n4
2.1331468664933E+29
n5
4.584330785438E+36
2 √n
4635.8309934682
3 √n
278.02577698631
4 √n
68.08693702516
5 √n
29.271908428597
1 , 9 , 41 , 139 , 369 , 419 , 1251 , 3771 , 5699 , 17179 , 51291 , 58241 , 154611 , 524169 , 2387881 , 21490929
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21490928
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21490929 can be divided by 16 positive divisors.
The sum of these divisors (counting 21490929) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001111110110011110001
3
Ternary
1111102212000100
4
Quaternary
1101332303301
5
Quinary
21000202204
6
Senary
2044343013
8
Octal
121766361
10
Decimal
21490929
12
Duodecimal
7244a69
16
Hexadecimal
147ecf1
20
Vigesimal
6e6769
36
Base36
csmi9
md5
57c60b01a1912b2c9691f1201bad1833
sha1
a523e629fce1c0faf0214c56db166935a42f1d46
sha256
a3930ca1ffb7abe55ad5f8ce1ff5b5738f04713d88289d826a93b1e47cdacb17
sha512
9fe8b5c66f273ee85e4be302ccc3621220f2e693ef2bfacd6c24db7bb58af9f1b375e49ce31f3ace3905c88203fb18aa9dd88abe3da607a8524af0ea8abfe3b7
ripemd-160
5435c0b8296b93323d14ac3de822f645ba0c66de
Diameter
42981858
Circumference
135031489.33044
Area
1.4509760749824E+15
Volume
4.157709841086E+22
Surface area
5.8039042999295E+15
Circumference
135031489.33044
Perimeter
85963716
Area
461860029283041
Diagonal
30392763.259797
Surface area
2771160175698246
Volume
9.9258010972598E+21
Space diagonal
37223380.929855
Perimeter
64472787
Area
1.9999125917587E+14
Altitude
18611690.464928
Surface area
1.9999125917587E+14
Volume
1.1697668774302E+21
Height
10130921.086599