21095881 is an odd 8-digits prime number following 21095880
and preceding 21095882 . In scientific notation, it is written as 2.1095881 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 21095880 positive integers (up to 21095881) that are relatively prime to 21095881.
21095881 has 2 divisors, whose sum is 21095882
The reverse of 21095881 is 18859012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million ninety-five thousand eight hundred eighty-one
Scientific notation
2.1095881 × 10^7
Engineering notation
2.1095881 × 10^6
Prime Factorization
21095881
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21095881
Product of the distinct prime numbers
The prime factorization of 21095881 is 21095881.
Since it has a total of 1 prime factors.
10 , 8 , 49 , 5 , 78 , 355 , 3900 , 8426 , 93295 , 9352 , 692053 , 746978 , 6854328 , 5211071 , 45484790 , 38211696 , 930602234 , 431701050 , 473579899 , 9868281498
n×2
42191762
n×3
63287643
n×4
84383524
n×5
105479405
n÷2
10547940.5
n÷3
7031960.3333333
n÷3
5273970.25
n÷5
4219176.2
n2
445036195166161
n3
9.3884306139181E+21
n4
1.9805721500797E+29
n5
4.1781914389996E+36
2 √n
4593.0252557546
3 √n
276.31166658383
4 √n
67.771861828894
5 √n
29.163492588136
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21095882
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10547941
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4593.0253646154
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999051948
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21095881 can be divided by 2 positive divisors.
The sum of these divisors (counting 21095881) is 21095882, the average is 10547941.
Base
System
Value
2
Binary
1010000011110010111001001
3
Ternary
1110200210002221
4
Quaternary
1100132113021
5
Quinary
20400032011
6
Senary
2032054041
8
Octal
120362711
10
Decimal
21095881
12
Duodecimal
7094321
16
Hexadecimal
141e5c9
20
Vigesimal
6bgje1
36
Base36
ck5op
md5
286a2a756c19e1a5a558db4ca98dbbbd
sha1
1bff8e868cf1b107878dcc3b64e5845f48a7feb1
sha256
e344a0ee6a49f3f0c48af24e2668027a17b0b5ed2e620ec497a1a5f6ae31e729
sha512
f795151b8d23024103de1197d995df99253caa84906b9a68d954a0dadc70bca97edc3a40a49586482c82aa6df00f92477d9d08b259becaa12629390fcc8802a9
ripemd-160
51cf17c4d3f2340f1005951f2b6d02a0113948fe
Diameter
42191762
Circumference
132549329.54121
Area
1.3981224413156E+15
Volume
3.9326166193897E+22
Surface area
5.5924897652623E+15
Circumference
132549329.54121
Perimeter
84383524
Area
445036195166161
Diagonal
29834081.020409
Surface area
2670217170996966
Volume
9.3884306139181E+21
Space diagonal
36539137.722427
Perimeter
63287643
Area
1.9270632530873E+14
Altitude
18269568.861213
Surface area
1.9270632530873E+14
Volume
1.1064371586335E+21
Height
9944693.6734696