21682487 is an odd 8-digits prime number following 21682486
and preceding 21682488 . In scientific notation, it is written as 2.1682487 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 21682486 positive integers (up to 21682487) that are relatively prime to 21682487.
21682487 has 2 divisors, whose sum is 21682488
The reverse of 21682487 is 78428612
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 38 Digital Root 2
Name
twenty-one million six hundred eighty-two thousand four hundred eighty-seven
Scientific notation
2.1682487 × 10^7
Engineering notation
2.1682487 × 10^6
Prime Factorization
21682487
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21682487 Product of the distinct prime numbers
The prime factorization of 21682487 is 21682487.
Since it has a total of 1 prime factors.
5 , 3 , 33 , 41 , 753 , 327 , 1946 , 8855 , 91509 , 30194 , 623574 , 149304 , 5051457 , 326464 , 46315334 , 577404 , 669588354 , 78994238 , 4976657852 , 8685620939
n×2
43364974
n×3
65047461
n×4
86729948
n×5
108412435
n÷2
10841243.5
n÷3
7227495.6666667
n÷3
5420621.75
n÷5
4336497.4
n2
470130242505169
n3
1.0193592871425E+22
n4
2.2102244491797E+29
n5
4.7923162886421E+36
2 √n4656.4457475633
3 √n278.84938964189
4 √n68.238154631872
5 √n29.323906017739
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21682488 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10841244 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4656.4458549413 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999077597 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21682487 can be divided by 2 positive divisors.
The sum of these divisors (counting 21682487) is 21682488, the average is 10841244.
Base
System
Value
2
Binary
1010010101101100100110111
3
Ternary
1111210120210002
4
Quaternary
1102231210313
5
Quinary
21022314422
6
Senary
2052421515
8
Octal
122554467
10
Decimal
21682487
12
Duodecimal
731789b
16
Hexadecimal
14ad937
20
Vigesimal
6fa647
36
Base36
cwqbb
md5
6499f05a91bc35b65d9d740a4015033a
sha1
8b04c8e7535420879bfb66ac48f2fad0eacb8809
sha256
bdfa29381d179ac6a0b90905ce77f1c47f3bb00c98cbe4bf1863cd2395d958b5
sha512
70ee47d1c44a7c2fb4073067eba164e992ce65fb196f4870d1340e7ecdb6f592fb0321334c526b4371efae03a8f6d210a45d88054ed187f5adc057d1782106db
ripemd-160
f9e9b275b922414d51fb659c69e1616ab26490ef
Diameter
43364974
Circumference
136235083.74151
Area
1.4769577160846E+15
Volume
4.2698821971406E+22
Surface area
5.9078308643385E+15
Circumference
136235083.74151
Perimeter
86729948
Area
470130242505169
Diagonal
30663667.181378
Surface area
2820781455031014
Volume
1.0193592871425E+22
Space diagonal
37555169.118452
Perimeter
65047461
Area
2.0357236654841E+14
Altitude
18777584.559226
Surface area
2.0357236654841E+14
Volume
1.2013264406733E+21
Height
10221222.393793