21492955 is an odd 8-digits composite number following 21492954
and preceding 21492956 . In scientific notation, it is written as 2.1492955 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 15631200 positive integers (up to 21492955) that are relatively prime to 21492955.
21492955 has 4 divisors, whose sum is 21883792
The reverse of 21492955 is 55929412
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million four hundred ninety-two thousand nine hundred fifty-five
Scientific notation
2.1492955 × 10^7
Engineering notation
2.1492955 × 10^6
Prime Factorization
55 × 390781
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21492955
Product of the distinct prime numbers
The prime factorization of 21492955 is 55 × 390781.
Since it has a total of 2 prime factors.
3 , 6 , 39 , 48 , 107 , 411 , 7683 , 82 , 57826 , 26799 , 740275 , 474576 , 8357769 , 76376 , 29339495 , 87775781 , 877981582 , 510573698 , 9580805610 , 1519666636
n×2
42985910
n×3
64478865
n×4
85971820
n×5
107464775
n÷2
10746477.5
n÷3
7164318.3333333
n÷3
5373238.75
n÷5
4298591
n2
461947114632025
n3
9.928608547166E+21
n4
2.1339513671685E+29
n5
4.5864920706742E+36
2 √n
4636.0495036184
3 √n
278.03451342459
4 √n
68.088541647023
5 √n
29.272460314002
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
-21492954
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 21492955 can be divided by 4 positive divisors.
The sum of these divisors (counting 21492955) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111010011011011
3
Ternary
1111102221210101
4
Quaternary
1101333103123
5
Quinary
21000233310
6
Senary
2044400231
8
Octal
121772333
10
Decimal
21492955
12
Duodecimal
7246077
16
Hexadecimal
147f4db
20
Vigesimal
6e6c7f
36
Base36
cso2j
md5
cff0003d949f7185adfc3070ba9a7206
sha1
1407dcd3bed85162e57d2a35816b5ff0397a086c
sha256
c25a6eca759832af023e902605760bbe878f9c27f5da961f98f2f4c553f434fc
sha512
bd5a45118915ba9c45bc461662f2321d2ae7e8315f15e2f2cf1668441d86e2b23f3bfa2df71af9df01ca62df842b253c17b73925fbb220d8f1a4c99b3f73ac3d
ripemd-160
ab6dac8ad393fd3550acf4c90572f81b71d48efb
Diameter
42985910
Circumference
135044219.06387
Area
1.451249661675E+15
Volume
4.1588858229527E+22
Surface area
5.8049986466999E+15
Circumference
135044219.06387
Perimeter
85971820
Area
461947114632025
Diagonal
30395628.456475
Surface area
2771682687792150
Volume
9.928608547166E+21
Space diagonal
37226890.064792
Perimeter
64478865
Area
2.0002896823813E+14
Altitude
18613445.032396
Surface area
2.0002896823813E+14
Volume
1.1700977385746E+21
Height
10131876.152158