21000955 is an odd 8-digits composite number following 21000954
and preceding 21000956 . In scientific notation, it is written as 2.1000955 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 16070208 positive integers (up to 21000955) that are relatively prime to 21000955.
21000955 has 4 divisors, whose sum is 21183688
The reverse of 21000955 is 55900012
Previous prime number is 115
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million nine hundred fifty-five
Scientific notation
2.1000955 × 10^7
Engineering notation
2.1000955 × 10^6
Prime Factorization
115 × 182617
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000955
Product of the distinct prime numbers
The prime factorization of 21000955 is 115 × 182617.
Since it has a total of 2 prime factors.
6 , 9 , 8 , 23 , 326 , 636 , 2964 , 6056 , 53488 , 20496 , 91134 , 397825 , 9429925 , 4374971 , 61468489 , 19961323 , 86014050 , 967460440 , 5357491111 , 5143663361
n×2
42001910
n×3
63002865
n×4
84003820
n×5
105004775
n÷2
10500477.5
n÷3
7000318.3333333
n÷3
5250238.75
n÷5
4200191
n2
441040110912025
n3
9.2622635224584E+21
n4
1.9451637943329E+29
n5
4.0850297312415E+36
2 √n
4582.6798928138
3 √n
275.89659975343
4 √n
67.695493888543
5 √n
29.137199588299
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
-21000954
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 21000955 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000955) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111001011111011
3
Ternary
1110111221220011
4
Quaternary
1100013023323
5
Quinary
20334012310
6
Senary
2030042351
8
Octal
120071373
10
Decimal
21000955
12
Duodecimal
70493b7
16
Hexadecimal
14072fb
20
Vigesimal
6b527f
36
Base36
ci4fv
md5
0ad1ab86ad9916a685649715d07cf347
sha1
09f8dbe1e12ba502c12416f76829156e51ff3f45
sha256
e06700fe2bbe150439c94f485224cfe868d3482cc71050ca9b96b6ecc81f8a85
sha512
5366b8ff26a16eef6f8fc13e5346a600d9b2cd9e902ad3b9688da8b54e042874421ed0fbb42cc1eb43b509688eac4c66bff422c47b1f0931069bfc6a8da55373
ripemd-160
7d167550b604f54dc94aee2ceb78e4b8068dba12
Diameter
42001910
Circumference
131952891.89274
Area
1.3855683723796E+15
Volume
3.8797678717024E+22
Surface area
5.5422734895186E+15
Circumference
131952891.89274
Perimeter
84003820
Area
441040110912025
Diagonal
29699835.383787
Surface area
2646240665472150
Volume
9.2622635224584E+21
Space diagonal
36374721.067468
Perimeter
63002865
Area
1.9097597006886E+14
Altitude
18187360.533734
Surface area
1.9097597006886E+14
Volume
1.0915682243112E+21
Height
9899945.127929