21291219 is an odd 8-digits composite number following 21291218
and preceding 21291220 . In scientific notation, it is written as 2.1291219 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 14175072 positive integers (up to 21291219) that are relatively prime to 21291219.
21291219 has 8 divisors, whose sum is 23688720
The reverse of 21291219 is 91219212
Previous prime number is 1187
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million two hundred ninety-one thousand two hundred nineteen
Scientific notation
2.1291219 × 10^7
Engineering notation
2.1291219 × 10^6
Prime Factorization
9 × 1187 × 1993
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21291219
Product of the distinct prime numbers
The prime factorization of 21291219 is 9 × 1187 × 1993.
Since it has a total of 3 prime factors.
7 , 3 , 94 , 71 , 343 , 824 , 4433 , 4608 , 85483 , 43944 , 381378 , 821614 , 9283574 , 5638625 , 38552515 , 60332829 , 279248727 , 808559267 , 3304351482 , 9203079581
n×2
42582438
n×3
63873657
n×4
85164876
n×5
106456095
n÷2
10645609.5
n÷3
7097073
n÷3
5322804.75
n÷5
4258243.8
n2
453316006505961
n3
9.6516503707238E+21
n4
2.0549540175451E+29
n5
4.3752476022483E+36
2 √n
4614.2408909809
3 √n
277.16188671595
4 √n
67.928203943435
5 √n
29.217301719223
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
-21291218
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 21291219 can be divided by 8 positive divisors.
The sum of these divisors (counting 21291219) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001001110000011010011
3
Ternary
1111001201001200
4
Quaternary
1101032003103
5
Quinary
20422304334
6
Senary
2040202243
8
Octal
121160323
10
Decimal
21291219
12
Duodecimal
7169383
16
Hexadecimal
144e0d3
20
Vigesimal
6d180j
36
Base36
cocer
md5
0945cdeefd6b9f2b3f669ed3408a6d0a
sha1
897c3f3eb746cebec0e8ed5c860577bfbe854472
sha256
e5dbdc5e36d2378b30a07b7553aad749920af061a0cdd4f6747912e7b8575409
sha512
c94ea0d3cbbcad28eb5aee24b1b746fa4aaf4144cafa65658aa0d7b77cb1fdd967e543bbd38662a12ca731b8f1b974701a1a459c21be043febe3da59153227d7
ripemd-160
8af7214dc05b4516bdf233fd29c8faf6ac241f14
Diameter
42582438
Circumference
133776674.39274
Area
1.4241342357938E+15
Volume
4.0428738532911E+22
Surface area
5.6965369431752E+15
Circumference
133776674.39274
Perimeter
85164876
Area
453316006505961
Diagonal
30110330.669256
Surface area
2719896039035766
Volume
9.6516503707238E+21
Space diagonal
36877473.063076
Perimeter
63873657
Area
1.9629158878814E+14
Altitude
18438736.531538
Surface area
1.9629158878814E+14
Volume
1.1374579044634E+21
Height
10036776.889752