21491629 is an odd 8-digits composite number following 21491628
and preceding 21491630 . In scientific notation, it is written as 2.1491629 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 21109200 positive integers (up to 21491629) that are relatively prime to 21491629.
21491629 has 8 divisors, whose sum is 21876480
The reverse of 21491629 is 92619412
Previous prime number is 719
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred ninety-one thousand six hundred twenty-nine
Scientific notation
2.1491629 × 10^7
Engineering notation
2.1491629 × 10^6
Prime Factorization
71 × 719 × 421
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491629
Product of the distinct prime numbers
The prime factorization of 21491629 is 71 × 719 × 421.
Since it has a total of 3 prime factors.
3 , 9 , 94 , 15 , 774 , 378 , 305 , 3768 , 30107 , 79171 , 286591 , 829168 , 8624571 , 103392 , 62367345 , 43234282 , 880715204 , 379974879 , 8573096230 , 3017754302
n×2
42983258
n×3
64474887
n×4
85966516
n×5
107458145
n÷2
10745814.5
n÷3
7163876.3333333
n÷3
5372907.25
n÷5
4298325.8
n2
461890117073641
n3
9.9267710349133E+21
n4
2.133424802503E+29
n5
4.5850774354793E+36
2 √n
4635.9064917231
3 √n
278.02879556112
4 √n
68.087491448305
5 √n
29.272099114341
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
-21491628
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 21491629 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491629) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110111110101101
3
Ternary
1111102212222021
4
Quaternary
1101332332231
5
Quinary
21000213004
6
Senary
2044350141
8
Octal
121767655
10
Decimal
21491629
12
Duodecimal
7245351
16
Hexadecimal
147efad
20
Vigesimal
6e6919
36
Base36
csn1p
md5
bfceea49e55d91809edc38ee484f68c1
sha1
c5278a61c95f1dd356be7a9d7f74731d76e567ec
sha256
5f2b5cf388aaaf4e49ccdb55ce256bfe4f4bd473669755bdc09eb605c2e03927
sha512
837564cbbb311d4ab52518b640b52cb67dc89f9f78f1f67a5ef692b3b69c8dedb70ef16599dd2db836d00541bbb640ff8adfa1d271317900ce5a7c98f9f65ac5
ripemd-160
0693690b43dcf1482a0af1c665c9fc1f9b307d7f
Diameter
42983258
Circumference
135035887.56015
Area
1.4510705985643E+15
Volume
4.1581161276202E+22
Surface area
5.8042823942571E+15
Circumference
135035887.56015
Perimeter
85966516
Area
461890117073641
Diagonal
30393753.209291
Surface area
2771340702441846
Volume
9.9267710349133E+21
Space diagonal
37224593.365421
Perimeter
64474887
Area
2.0000428757137E+14
Altitude
18612296.68271
Surface area
2.0000428757137E+14
Volume
1.1698811856789E+21
Height
10131251.069764