21031609 is an odd 8-digits composite number following 21031608
and preceding 21031610 . In scientific notation, it is written as 2.1031609 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 20294400 positive integers (up to 21031609) that are relatively prime to 21031609.
21031609 has 8 divisors, whose sum is 21772800
The reverse of 21031609 is 90613012
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million thirty-one thousand six hundred nine
Scientific notation
2.1031609 × 10^7
Engineering notation
2.1031609 × 10^6
Prime Factorization
449 × 31 × 1511
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031609
Product of the distinct prime numbers
The prime factorization of 21031609 is 449 × 31 × 1511.
Since it has a total of 3 prime factors.
10 , 1 , 4 , 99 , 688 , 754 , 2724 , 4247 , 83023 , 70947 , 504488 , 282212 , 2888851 , 1073327 , 59886607 , 37395690 , 388233230 , 961532017 , 376661132 , 8922595397
n×2
42063218
n×3
63094827
n×4
84126436
n×5
105158045
n÷2
10515804.5
n÷3
7010536.3333333
n÷3
5257902.25
n÷5
4206321.8
n2
442328577128881
n3
9.302881683701E+21
n4
1.9565457014486E+29
n5
4.1149304183498E+36
2 √n
4586.0232227934
3 √n
276.03077179136
4 √n
67.720183274954
5 √n
29.145700636808
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
-21031608
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 21031609 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031609) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101010111001
3
Ternary
1110120111221111
4
Quaternary
1100032222321
5
Quinary
20341002414
6
Senary
2030440321
8
Octal
120165271
10
Decimal
21031609
12
Duodecimal
70630a1
16
Hexadecimal
140eab9
20
Vigesimal
6b8j09
36
Base36
cis3d
md5
84dc233facc315be3e19a27af312f4d4
sha1
95d728a844148b0936df111cb4b72073fa8d6bda
sha256
0b372455b09972c7218f22677d21072a55faa4b46a719d5e64e799fec54a62c4
sha512
8b8dd02941ef1bde73335cf498d743b9a836e7bfa1cb560f3e7fc965d37f81d6ee4a8a88737cffbfc2d1d5ea4230719eb2fb651b2bf311dce113e5318ea63559
ripemd-160
115fcbb5684dcc352cc0847ff6c91dad896bf549
Diameter
42063218
Circumference
132145496.65515
Area
1.3896162083809E+15
Volume
3.8967819672973E+22
Surface area
5.5584648335237E+15
Circumference
132145496.65515
Perimeter
84126436
Area
442328577128881
Diagonal
29743186.686328
Surface area
2653971462773286
Volume
9.302881683701E+21
Space diagonal
36427815.352923
Perimeter
63094827
Area
1.9153389230672E+14
Altitude
18213907.676461
Surface area
1.9153389230672E+14
Volume
1.0963551205202E+21
Height
9914395.5621093