21556946 is an even 8-digits composite number following 21556945
and preceding 21556947 . In scientific notation, it is written as 2.1556946 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 10778472 positive integers (up to 21556946) that are relatively prime to 21556946.
21556946 has 4 divisors, whose sum is 32335422
The reverse of 21556946 is 64965512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million five hundred fifty-six thousand nine hundred forty-six
Scientific notation
2.1556946 × 10^7
Engineering notation
2.1556946 × 10^6
Prime Factorization
2 × 10778473
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21556946
Product of the distinct prime numbers
The prime factorization of 21556946 is 2 × 10778473.
Since it has a total of 2 prime factors.
3 , 2 , 67 , 86 , 296 , 836 , 9487 , 3261 , 9533 , 56196 , 317395 , 184749 , 9865395 , 6432164 , 97615274 , 11405232 , 916427887 , 86143211 , 1618476017 , 1145217906
n×2
43113892
n×3
64670838
n×4
86227784
n×5
107784730
n÷2
10778473
n÷3
7185648.6666667
n÷3
5389236.5
n÷5
4311389.2
n2
464701920846916
n3
1.0017554213793E+22
n4
2.1594787523881E+29
n5
4.6551766853378E+36
2 √n
4642.9458321199
3 √n
278.31017086066
4 √n
68.139165185082
5 √n
29.289870178616
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
-21556945
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 21556946 can be divided by 4 positive divisors.
The sum of these divisors (counting 21556946) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001110111011010010
3
Ternary
1111120012120102
4
Quaternary
1102032323102
5
Quinary
21004310241
6
Senary
2050012402
8
Octal
122167322
10
Decimal
21556946
12
Duodecimal
7277102
16
Hexadecimal
148eed2
20
Vigesimal
6eec76
36
Base36
cu1g2
md5
3f6c9d36be9ce4dbd64c18a658401c4f
sha1
3fd7b6bf52b88b9998f31aa0257c63830a21644f
sha256
f81cad63fde829ded2cf4bbe26dd58458d88511254815853ea6dd4911ffc7bbd
sha512
ab62048527603dec69ec9a90abb3e644cb7968fcce9e9d21c6415813e5509b2e51c12d1171585ab5b5d6a5aeda25a2a38e7726890959b1e207f3585af2427d2e
ripemd-160
27e00a67be4abf7b26a28893d426c61d9365cf3d
Diameter
43113892
Circumference
135446286.37486
Area
1.4599041406417E+15
Volume
4.1961432966654E+22
Surface area
5.8396165625669E+15
Circumference
135446286.37486
Perimeter
86227784
Area
464701920846916
Diagonal
30486125.396544
Surface area
2788211525081496
Volume
1.0017554213793E+22
Space diagonal
37337725.728019
Perimeter
64670838
Area
2.0122183432043E+14
Altitude
18668862.864009
Surface area
2.0122183432043E+14
Volume
1.1805800859128E+21
Height
10162041.798848