21236421 is an odd 8-digits composite number following 21236420
and preceding 21236422 . In scientific notation, it is written as 2.1236421 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 14126112 positive integers (up to 21236421) that are relatively prime to 21236421.
21236421 has 8 divisors, whose sum is 28378240
The reverse of 21236421 is 12463212
Previous prime number is 463
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million two hundred thirty-six thousand four hundred twenty-one
Scientific notation
2.1236421 × 10^7
Engineering notation
2.1236421 × 10^6
Prime Factorization
3 × 463 × 15289
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21236421
Product of the distinct prime numbers
The prime factorization of 21236421 is 3 × 463 × 15289.
Since it has a total of 3 prime factors.
7 , 2 , 86 , 88 , 318 , 355 , 2683 , 4936 , 25830 , 71021 , 711233 , 464331 , 7489834 , 3691140 , 33133139 , 87522227 , 254267588 , 651268373 , 174927503 , 3063236959
n×2
42472842
n×3
63709263
n×4
84945684
n×5
106182105
n÷2
10618210.5
n÷3
7078807
n÷3
5309105.25
n÷5
4247284.2
n2
450985576889241
n3
9.5773195757478E+21
n4
2.0338799056212E+29
n5
4.3192329939212E+36
2 √n
4608.2991439359
3 √n
276.92390181972
4 √n
67.884454361333
5 √n
29.202246681538
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
-21236420
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 21236421 can be divided by 8 positive divisors.
The sum of these divisors (counting 21236421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000000101011000101
3
Ternary
1110221220220010
4
Quaternary
1101000223011
5
Quinary
20414031141
6
Senary
2035100433
8
Octal
121005305
10
Decimal
21236421
12
Duodecimal
7141719
16
Hexadecimal
1440ac5
20
Vigesimal
6ceb11
36
Base36
cn64l
md5
0e7d6c949fabdb4d2e155ea26ac65543
sha1
96b471f26c320fe7b0e68fc5617a3eb28760f209
sha256
f39234c066da16f79ea179ab7b48bd3c4f567ce8eb590ab3645829e73af89221
sha512
299794191c84fc918e154b03daba4d41b87381d0c2c5115752b57c6103995e8ed41c62e55db423235485bcd76b3d234c41cc94557a9f570bdd9de6213fb79592
ripemd-160
a8426142a79b93998eb36dbf6c333c736eb2ec98
Diameter
42472842
Circumference
133432368.40428
Area
1.4168129752302E+15
Volume
4.0117382427001E+22
Surface area
5.6672519009208E+15
Circumference
133432368.40428
Perimeter
84945684
Area
450985576889241
Diagonal
30032834.594465
Surface area
2705913461335446
Volume
9.5773195757478E+21
Space diagonal
36782560.142923
Perimeter
63709263
Area
1.9528248316323E+14
Altitude
18391280.071461
Surface area
1.9528248316323E+14
Volume
1.128697936267E+21
Height
10010944.864822