21551705 is an odd 8-digits composite number following 21551704
and preceding 21551706 . In scientific notation, it is written as 2.1551705 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 14739072 positive integers (up to 21551705) that are relatively prime to 21551705.
21551705 has 16 divisors, whose sum is 29635200
The reverse of 21551705 is 50715512
Previous prime number is 1049
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million five hundred fifty-one thousand seven hundred five
Scientific notation
2.1551705 × 10^7
Engineering notation
2.1551705 × 10^6
Prime Factorization
7 × 5 × 1049 × 587
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21551705
Product of the distinct prime numbers
The prime factorization of 21551705 is 7 × 5 × 1049 × 587.
Since it has a total of 4 prime factors.
4 , 4 , 36 , 40 , 63 , 185 , 4277 , 2471 , 19562 , 64465 , 867769 , 884795 , 1637024 , 7177588 , 3060198 , 87859105 , 690032534 , 465182097 , 6145296775 , 6106657160
n×2
43103410
n×3
64655115
n×4
86206820
n×5
107758525
n÷2
10775852.5
n÷3
7183901.6666667
n÷3
5387926.25
n÷5
4310341
n2
464475988407025
n3
1.0010249481732E+22
n4
2.1573794380668E+29
n5
4.6495205222282E+36
2 √n
4642.3813932076
3 √n
278.28761445232
4 √n
68.135023249483
5 √n
29.288445828985
1 , 5 , 7 , 35 , 587 , 1049 , 2935 , 4109 , 5245 , 7343 , 20545 , 36715 , 615763 , 3078815 , 4310341 , 21551705
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21551704
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21551705 can be divided by 16 positive divisors.
The sum of these divisors (counting 21551705) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001101101001011001
3
Ternary
1111112221101022
4
Quaternary
1102031221121
5
Quinary
21004123310
6
Senary
2045532225
8
Octal
122155131
10
Decimal
21551705
12
Duodecimal
7274075
16
Hexadecimal
148da59
20
Vigesimal
6edj55
36
Base36
ctxeh
md5
c8b2d28ca2485a332c67c4877217da6b
sha1
2c087aeb4a7ad91afb0f7055d6af9755cc7d7213
sha256
147a10a755f44862b5b8a523552dc30e80ae2a64b1a4c055cf326e7ed4fbe810
sha512
9ba5757b0ecdaf17e4975187a8b3552cbdf55ffa6167d485aa1d5dc8cd89245a5f4aa74f75a221d29479f968b7f8e0e35d4a68ca7a7e0b2c2261e1587f31e3d6
ripemd-160
10615e528595d99a1a8ea33d4ba05f614a749ad2
Diameter
43103410
Circumference
135413356.20067
Area
1.4591943529484E+15
Volume
4.1930834976545E+22
Surface area
5.8367774117935E+15
Circumference
135413356.20067
Perimeter
86206820
Area
464475988407025
Diagonal
30478713.503264
Surface area
2786855930442150
Volume
1.0010249481732E+22
Space diagonal
37328648.049736
Perimeter
64655115
Area
2.0112400270419E+14
Altitude
18664324.024868
Surface area
2.0112400270419E+14
Volume
1.1797192149836E+21
Height
10159571.167755