21556961 is an odd 8-digits prime number following 21556960
and preceding 21556962 . In scientific notation, it is written as 2.1556961 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 21556960 positive integers (up to 21556961) that are relatively prime to 21556961.
21556961 has 2 divisors, whose sum is 21556962
The reverse of 21556961 is 16965512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million five hundred fifty-six thousand nine hundred sixty-one
Scientific notation
2.1556961 × 10^7
Engineering notation
2.1556961 × 10^6
Prime Factorization
21556961
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21556961
Product of the distinct prime numbers
The prime factorization of 21556961 is 21556961.
Since it has a total of 1 prime factors.
3 , 4 , 73 , 82 , 274 , 694 , 4895 , 8462 , 13495 , 98414 , 845438 , 173645 , 9728354 , 3339121 , 71961198 , 39835859 , 271140333 , 272758701 , 9936748873 , 5356200965
n×2
43113922
n×3
64670883
n×4
86227844
n×5
107784805
n÷2
10778480.5
n÷3
7185653.6666667
n÷3
5389240.25
n÷5
4311392.2
n2
464702567555521
n3
1.0017575125394E+22
n4
2.1594847629269E+29
n5
4.655192881451E+36
2 √n
4642.9474474734
3 √n
278.31023541297
4 √n
68.139177038422
5 √n
29.289874254777
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21556962
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10778481
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4642.9475551636
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999072225
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21556961 can be divided by 2 positive divisors.
The sum of these divisors (counting 21556961) is 21556962, the average is 10778481.
Base
System
Value
2
Binary
1010010001110111011100001
3
Ternary
1111120012120222
4
Quaternary
1102032323201
5
Quinary
21004310321
6
Senary
2050012425
8
Octal
122167341
10
Decimal
21556961
12
Duodecimal
7277115
16
Hexadecimal
148eee1
20
Vigesimal
6eec81
36
Base36
cu1gh
md5
a7cc304231f9552ce51f16f688109b4c
sha1
4dbf4a209fa51a7a0aeb8775e8dd1bfccdd9f126
sha256
bc6542b7d6f933768aecfbc306ccc057a3a9adfd47a1c18ba862a50faf7dbf33
sha512
c109024fb7831c10ac3c3ed2b16ce32cc2738b5178a87641610a69644cce1480907e3e0f7f728d0841c76f44244baed20a81748bf2c159b36131c4914ab54406
ripemd-160
edcc549a876d878b6af47dfff733074a7a04b390
Diameter
43113922
Circumference
135446380.62264
Area
1.4599061723367E+15
Volume
4.1961520560963E+22
Surface area
5.839624689347E+15
Circumference
135446380.62264
Perimeter
86227844
Area
464702567555521
Diagonal
30486146.609748
Surface area
2788215405333126
Volume
1.0017575125394E+22
Space diagonal
37337751.708781
Perimeter
64670883
Area
2.0122211435347E+14
Altitude
18668875.85439
Surface area
2.0122211435347E+14
Volume
1.1805825503687E+21
Height
10162048.869916