21552881 is an odd 8-digits composite number following 21552880
and preceding 21552882 . In scientific notation, it is written as 2.1552881 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 18473892 positive integers (up to 21552881) that are relatively prime to 21552881.
21552881 has 4 divisors, whose sum is 24631872
The reverse of 21552881 is 18825512
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million five hundred fifty-two thousand eight hundred eighty-one
Scientific notation
2.1552881 × 10^7
Engineering notation
2.1552881 × 10^6
Prime Factorization
7 × 3078983
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21552881
Product of the distinct prime numbers
The prime factorization of 21552881 is 7 × 3078983.
Since it has a total of 2 prime factors.
8 , 7 , 1 , 67 , 674 , 806 , 5301 , 8601 , 93266 , 45858 , 205302 , 624975 , 3968901 , 5119281 , 61535198 , 45798736 , 713670321 , 996133148 , 6762141601 , 2878835020
n×2
43105762
n×3
64658643
n×4
86211524
n×5
107764405
n÷2
10776440.5
n÷3
7184293.6666667
n÷3
5388220.25
n÷5
4310576.2
n2
464526679400161
n3
1.0011888242437E+22
n4
2.1578503587454E+29
n5
4.6507891997847E+36
2 √n
4642.5080506123
3 √n
278.29267608251
4 √n
68.135952702023
5 √n
29.288765455303
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
-21552880
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 21552881 can be divided by 4 positive divisors.
The sum of these divisors (counting 21552881) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001101111011110001
3
Ternary
1111112222222212
4
Quaternary
1102031323301
5
Quinary
21004143011
6
Senary
2045541505
8
Octal
122157361
10
Decimal
21552881
12
Duodecimal
7274895
16
Hexadecimal
148def1
20
Vigesimal
6ee241
36
Base36
ctyb5
md5
2ab3a3105eeb06653852fbb94dcb7e73
sha1
4bf98c1949fcd18fb52327cfda5fd77dafcaf1ae
sha256
0b5777f1398aa00b07194dbb71e0b763993025dc893994c914fe75b56d5a413d
sha512
5e5418b6e1a2dd478ebacbc89b15ff4cd13d25d9cb475805c3200eb73feb628c55384e7b60c384f6fb6644360bcb674bc6b10940f31ba9b7cf20cf05433c6f0e
ripemd-160
bba60f829a991fd8d90cf15b7798219d1ff8e854
Diameter
43105762
Circumference
135420745.22659
Area
1.4593536034E+15
Volume
4.1937699401335E+22
Surface area
5.8374144136E+15
Circumference
135420745.22659
Perimeter
86211524
Area
464526679400161
Diagonal
30480376.618413
Surface area
2787160076400966
Volume
1.0011888242437E+22
Space diagonal
37330684.941486
Perimeter
64658643
Area
2.0114595254808E+14
Altitude
18665342.470743
Surface area
2.0114595254808E+14
Volume
1.1799123447848E+21
Height
10160125.539471