21551115 is an odd 8-digits composite number following 21551114
and preceding 21551116 . In scientific notation, it is written as 2.1551115 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 10994016 positive integers (up to 21551115) that are relatively prime to 21551115.
21551115 has 16 divisors, whose sum is 35981568
The reverse of 21551115 is 51115512
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million five hundred fifty-one thousand one hundred fifteen
Scientific notation
2.1551115 × 10^7
Engineering notation
2.1551115 × 10^6
Prime Factorization
3 × 5 × 23 × 62467
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21551115
Product of the distinct prime numbers
The prime factorization of 21551115 is 3 × 5 × 23 × 62467.
Since it has a total of 4 prime factors.
1 , 9 , 21 , 23 , 361 , 601 , 7519 , 1753 , 21350 , 6475 , 372134 , 728038 , 42499 , 3402200 , 58343200 , 96669139 , 606069551 , 540244133 , 6268781751 , 1552169374
n×2
43102230
n×3
64653345
n×4
86204460
n×5
107755575
n÷2
10775557.5
n÷3
7183705
n÷3
5387778.75
n÷5
4310223
n2
464450557743225
n3
1.0009427381738E+22
n4
2.1571432058799E+29
n5
4.6488841301387E+36
2 √n
4642.3178477997
3 √n
278.28507495964
4 √n
68.134556928182
5 √n
29.288285466988
1 , 3 , 5 , 15 , 23 , 69 , 115 , 345 , 62467 , 187401 , 312335 , 937005 , 1436741 , 4310223 , 7183705 , 21551115
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
-21551114
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 21551115 can be divided by 16 positive divisors.
The sum of these divisors (counting 21551115) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001101100000001011
3
Ternary
1111112220120110
4
Quaternary
1102031200023
5
Quinary
21004113430
6
Senary
2045525403
8
Octal
122154013
10
Decimal
21551115
12
Duodecimal
7273863
16
Hexadecimal
148d80b
20
Vigesimal
6edhff
36
Base36
ctwy3
md5
0c7df1caa99f42d05c669025b3d619e7
sha1
ae65ec8c323b6a394d6c67cd4e4b43a5fdd1f9fb
sha256
bf4b59a88bbc6a5c4bd4f8813906f71010f5f87a10579816aecbc96d2e3c4c76
sha512
0ba282d44a4def094db64215ac5bfa6d5a103732b1dd5812f6fc676d91f0ebc5e68c1cf21c9d4a57778d13078212a6b0c92b206e641b64cf857f60126e90ca14
ripemd-160
1381eced7de3ab485f3531a672e344520d837beb
Diameter
43102230
Circumference
135409649.12134
Area
1.4591144601618E+15
Volume
4.1927391372146E+22
Surface area
5.8364578406472E+15
Circumference
135409649.12134
Perimeter
86204460
Area
464450557743225
Diagonal
30477879.117262
Surface area
2786703346459350
Volume
1.0009427381738E+22
Space diagonal
37327626.13976
Perimeter
64653345
Area
2.0111299090374E+14
Altitude
18663813.06988
Surface area
2.0111299090374E+14
Volume
1.1796223295703E+21
Height
10159293.039087