21642008 is an even 8-digits composite number following 21642007
and preceding 21642009 . In scientific notation, it is written as 2.1642008 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 8 positive divisors.
There are 10821000 positive integers (up to 21642008) that are relatively prime to 21642008.
21642008 has 8 divisors, whose sum is 40578780
The reverse of 21642008 is 80024612
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million six hundred forty-two thousand eight
Scientific notation
2.1642008 × 10^7
Engineering notation
2.1642008 × 10^6
Prime Factorization
2 × 2 × 2 × 2705251
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5410502
Product of the distinct prime numbers
The prime factorization of 21642008 is 2 × 2 × 2 × 2705251.
Since it has a total of 4 prime factors.
4 , 10 , 22 , 89 , 295 , 107 , 1940 , 8134 , 90884 , 9507 , 839976 , 377378 , 4376485 , 2000597 , 17924238 , 27540522 , 213710358 , 426041249 , 9619287917 , 7644997844
n×2
43284016
n×3
64926024
n×4
86568032
n×5
108210040
n÷2
10821004
n÷3
7214002.6666667
n÷3
5410502
n÷5
4328401.6
n2
468376510272064
n3
1.013660818232E+22
n4
2.1937655537464E+29
n5
4.7477491664303E+36
2 √n
4652.0971614961
3 √n
278.67575371826
4 √n
68.206283885696
5 √n
29.31294888177
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21642007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21642008 can be divided by 8 positive divisors.
The sum of these divisors (counting 21642008) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010100011101100011000
3
Ternary
1111201112020212
4
Quaternary
1102203230120
5
Quinary
21020021013
6
Senary
2051510252
8
Octal
122435430
10
Decimal
21642008
12
Duodecimal
72b8388
16
Hexadecimal
14a3b18
20
Vigesimal
6f5508
36
Base36
cvv2w
md5
d243d03448f76670b1bd65c09a81cba6
sha1
0f5404e4324c6864c60ae802db6cc0fb2cd1d3e5
sha256
f56b2da6ed42ec2c00fc210921ff50a37cdd4ab967000543f91ab1643172032d
sha512
66825d2999dec4ff5ad131b388e28508ebf419f1eada99a6e97f8d91ab031fa4eadc8a36d22b6309a90e06e883ac550d3e1114ddbc45dc5c5e9964ee6d91fde3
ripemd-160
648c827e9dbb41f91a87e3dac0af43709a396dc6
Diameter
43284016
Circumference
135980746.68346
Area
1.4714482037847E+15
Volume
4.246012506386E+22
Surface area
5.885792815139E+15
Circumference
135980746.68346
Perimeter
86568032
Area
468376510272064
Diagonal
30606421.230587
Surface area
2810259061632384
Volume
1.013660818232E+22
Space diagonal
37485057.433812
Perimeter
64926024
Area
2.0281297821576E+14
Altitude
18742528.716906
Surface area
2.0281297821576E+14
Volume
1.1946107306583E+21
Height
10202140.410196