21055910 is an even 8-digits composite number following 21055909
and preceding 21055911 . In scientific notation, it is written as 2.1055910 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 8422360 positive integers (up to 21055910) that are relatively prime to 21055910.
21055910 has 8 divisors, whose sum is 37900656
The reverse of 21055910 is 01955012
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million fifty-five thousand nine hundred ten
Scientific notation
2.1055910 × 10^7
Engineering notation
2.1055910 × 10^6
Prime Factorization
2 × 5 × 2105591
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21055910
Product of the distinct prime numbers
The prime factorization of 21055910 is 2 × 5 × 2105591.
Since it has a total of 3 prime factors.
4 , 10 , 25 , 21 , 443 , 382 , 2575 , 6275 , 56767 , 97447 , 88250 , 963067 , 5210036 , 3413795 , 90776918 , 27875377 , 695629867 , 549844542 , 4185826091 , 1821949055
n×2
42111820
n×3
63167730
n×4
84223640
n×5
105279550
n÷2
10527955
n÷3
7018636.6666667
n÷3
5263977.5
n÷5
4211182
n2
443351345928100
n3
9.3351660382409E+21
n4
1.9656041593626E+29
n5
4.1387584275164E+36
2 √n
4588.6719211554
3 √n
276.13704424252
4 √n
67.739736648111
5 √n
29.152432813594
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
-21055909
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 21055910 can be divided by 8 positive divisors.
The sum of these divisors (counting 21055910) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000010100100110100110
3
Ternary
1110121202021112
4
Quaternary
1100110212212
5
Quinary
20342242120
6
Senary
2031145022
8
Octal
120244646
10
Decimal
21055910
12
Duodecimal
7075172
16
Hexadecimal
14149a6
20
Vigesimal
6bbjfa
36
Base36
cjaue
md5
0bb14a32740547406cb0623a03e1bcac
sha1
9b2e1d2dd722871b560887db551615472a38aebb
sha256
8f7b896585a9e5d077d8c43280b33126ed3b4712d6135fad076dbd02999f606a
sha512
f5be39c5796232fa377b9f21d691d926681aa18fb7c368add729efb58591d49d0cb8e43fe75d337f936f31afb3b29717ee1fa0009af0be2cc2433e4cc989a4a9
ripemd-160
d953fc9167a79b15bcebf70153b1d91e7c6be663
Diameter
42111820
Circumference
132298184.3413
Area
1.3928293313269E+15
Volume
3.9103052061038E+22
Surface area
5.5713173253075E+15
Circumference
132298184.3413
Perimeter
84223640
Area
443351345928100
Diagonal
29777553.490107
Surface area
2660108075568600
Volume
9.3351660382409E+21
Space diagonal
36469905.919598
Perimeter
63167730
Area
1.9197676418788E+14
Altitude
18234952.959799
Surface area
1.9197676418788E+14
Volume
1.1001598681904E+21
Height
9925851.1633691