21090907 is an odd 8-digits composite number following 21090906
and preceding 21090908 . In scientific notation, it is written as 2.1090907 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20733376 positive integers (up to 21090907) that are relatively prime to 21090907.
21090907 has 4 divisors, whose sum is 21448440
The reverse of 21090907 is 70909012
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million ninety thousand nine hundred seven
Scientific notation
2.1090907 × 10^7
Engineering notation
2.1090907 × 10^6
Prime Factorization
59 × 357473
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21090907
Product of the distinct prime numbers
The prime factorization of 21090907 is 59 × 357473.
Since it has a total of 2 prime factors.
10 , 5 , 42 , 94 , 431 , 402 , 4999 , 7438 , 39145 , 37184 , 616181 , 483263 , 3057935 , 4457894 , 56405895 , 46699537 , 790821143 , 297867012 , 8343814759 , 23685922
n×2
42181814
n×3
63272721
n×4
84363628
n×5
105454535
n÷2
10545453.5
n÷3
7030302.3333333
n÷3
5272726.75
n÷5
4218181.4
n2
444826358082649
n3
9.3817913494698E+21
n4
1.9787048884507E+29
n5
4.173268078276E+36
2 √n
4592.4837506517
3 √n
276.28994856439
4 √n
67.767866652653
5 √n
29.162117221116
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
-21090906
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 21090907 can be divided by 4 positive divisors.
The sum of these divisors (counting 21090907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011101001001011011
3
Ternary
1110200112021201
4
Quaternary
1100131021123
5
Quinary
20344402112
6
Senary
2032015031
8
Octal
120351133
10
Decimal
21090907
12
Duodecimal
7091477
16
Hexadecimal
141d25b
20
Vigesimal
6bg757
36
Base36
ck1uj
md5
0053544d1a27f8f6b605238ab013d21b
sha1
df1cdbe27ea0595f0c752acb4d403c2b3852fc62
sha256
853a0874942b9ee824b8b01c9c0dba8986244960f51c50427792a744cf077f64
sha512
7242d057c53f8d73a28ae460cf4b21eb9bdb2e49817d958452bd3e3275c5e84f28bad81cccf081f32c4cd037cbfb6647e404ec0ca60be23c4401b422b2e3b4e8
ripemd-160
324aac0317d523cabd15ffc75c023bfd04a216c3
Diameter
42181814
Circumference
132518076.97749
Area
1.3974632186756E+15
Volume
3.9298355708009E+22
Surface area
5.5898528747022E+15
Circumference
132518076.97749
Perimeter
84363628
Area
444826358082649
Diagonal
29827046.72215
Surface area
2668958148495894
Volume
9.3817913494698E+21
Space diagonal
36530522.50171
Perimeter
63272721
Area
1.9261546318624E+14
Altitude
18265261.250855
Surface area
1.9261546318624E+14
Volume
1.1056547138146E+21
Height
9942348.9073832