20210913 is an odd 8-digits composite number following 20210912
and preceding 20210914 . In scientific notation, it is written as 2.0210913 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 6 positive divisors.
There are 13473936 positive integers (up to 20210913) that are relatively prime to 20210913.
20210913 has 6 divisors, whose sum is 29193554
The reverse of 20210913 is 31901202
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million two hundred ten thousand nine hundred thirteen
Scientific notation
2.0210913 × 10^7
Engineering notation
2.0210913 × 10^6
Prime Factorization
3 × 3 × 2245657
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6736971
Product of the distinct prime numbers
The prime factorization of 20210913 is 3 × 3 × 2245657.
Since it has a total of 3 prime factors.
4 , 2 , 7 , 3 , 465 , 793 , 5562 , 8136 , 13703 , 55380 , 163479 , 871308 , 5397178 , 7839938 , 51855775 , 877571 , 217575255 , 824095794 , 7607079279 , 1479214313
n×2
40421826
n×3
60632739
n×4
80843652
n×5
101054565
n÷2
10105456.5
n÷3
6736971
n÷3
5052728.25
n÷5
4042182.6
n2
408481004293569
n3
8.2557740399299E+21
n4
1.6685673086868E+29
n5
3.3723268710514E+36
2 √n
4495.6549022362
3 √n
272.39260364037
4 √n
67.04964505675
5 √n
28.914599853659
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20210912
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20210913 can be divided by 6 positive divisors.
The sum of these divisors (counting 20210913) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001101000110010011100001
3
Ternary
1102000211011100
4
Quaternary
1031012103201
5
Quinary
20133222123
6
Senary
2001105013
8
Octal
115062341
10
Decimal
20210913
12
Duodecimal
6928169
16
Hexadecimal
13464e1
20
Vigesimal
66675d
36
Base36
c16u9
md5
0bd571975ad206e07980d8cf6d8f8a03
sha1
ee2b83a86f4316739c9be35b60f25e884405852d
sha256
c6f3cef2fa95187812363388ad2a7ac3c387367f3972ac83f7ffe5b62e12cfad
sha512
ae1ee706e99b81cc43fa6fd46d3fc30ef57df824c3ebb2fe267ec347e13e05b9a1bb1af471b69eef3094c48861d0be25443478a9da7d4d0e9b07e54098aa70c6
ripemd-160
747d3d6243dca4740bbddbfb104df4de985ef0db
Diameter
40421826
Circumference
126988911.60628
Area
1.2832809222197E+15
Volume
3.4581705431388E+22
Surface area
5.1331236888786E+15
Circumference
126988911.60628
Perimeter
80843652
Area
408481004293569
Diagonal
28582547.272543
Surface area
2450886025761414
Volume
8.2557740399299E+21
Space diagonal
35006328.183354
Perimeter
60632739
Area
1.7687746334081E+14
Altitude
17503164.091677
Surface area
1.7687746334081E+14
Volume
9.7295230126305E+20
Height
9527515.7575142