21053387 is an odd 8-digits composite number following 21053386
and preceding 21053388 . In scientific notation, it is written as 2.1053387 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 19945296 positive integers (up to 21053387) that are relatively prime to 21053387.
21053387 has 4 divisors, whose sum is 22161480
The reverse of 21053387 is 78335012
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million fifty-three thousand three hundred eighty-seven
Scientific notation
2.1053387 × 10^7
Engineering notation
2.1053387 × 10^6
Prime Factorization
19 × 1108073
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21053387
Product of the distinct prime numbers
The prime factorization of 21053387 is 19 × 1108073.
Since it has a total of 2 prime factors.
5 , 5 , 29 , 96 , 856 , 144 , 2504 , 1783 , 48549 , 49205 , 113762 , 431221 , 2662719 , 7273930 , 70667627 , 96840010 , 106656587 , 397848429 , 9301976539 , 1167381177
n×2
42106774
n×3
63160161
n×4
84213548
n×5
105266935
n÷2
10526693.5
n÷3
7017795.6666667
n÷3
5263346.75
n÷5
4210677.4
n2
443245104171769
n3
9.3318107139836E+21
n4
1.9646622237224E+29
n5
4.1362794120309E+36
2 √n
4588.3969967735
3 √n
276.12601453493
4 √n
67.737707348075
5 √n
29.151734148815
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21053386
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21053387 can be divided by 4 positive divisors.
The sum of these divisors (counting 21053387) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010011111111001011
3
Ternary
1110121121211002
4
Quaternary
1100103333023
5
Quinary
20342202022
6
Senary
2031125215
8
Octal
120237713
10
Decimal
21053387
12
Duodecimal
707380b
16
Hexadecimal
1413fcb
20
Vigesimal
6bbd97
36
Base36
cj8wb
md5
512a40abdac68a4d5a61aed101d7e814
sha1
81a8edf8ac1e67646de3961bd38f1f9a0ea9a21d
sha256
795ff62cc981de9f22c9c49ad2e7120f87123355b9a0b07eedb5ccc0a4699aa0
sha512
52102bcd43ca524c4d0baa6a07567ac43fae340726afee0d28a110a734e36a6cef8089d53be204cbb7b1f7558ff3a111c6ee06a4e6af532de32693c418476392
ripemd-160
0861144e9095f2780d6c97560f1749ce78ab56d6
Diameter
42106774
Circumference
132282331.86477
Area
1.3924955630057E+15
Volume
3.9088997311655E+22
Surface area
5.5699822520227E+15
Circumference
132282331.86477
Perimeter
84213548
Area
443245104171769
Diagonal
29773985.429289
Surface area
2659470625030614
Volume
9.3318107139836E+21
Space diagonal
36465535.95541
Perimeter
63160161
Area
1.9193076015792E+14
Altitude
18232767.977705
Surface area
1.9193076015792E+14
Volume
1.0997644394345E+21
Height
9924661.8097631