21694881 is an odd 8-digits composite number following 21694880
and preceding 21694882 . In scientific notation, it is written as 2.1694881 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13350672 positive integers (up to 21694881) that are relatively prime to 21694881.
21694881 has 8 divisors, whose sum is 31151680
The reverse of 21694881 is 18849612
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million six hundred ninety-four thousand eight hundred eighty-one
Scientific notation
2.1694881 × 10^7
Engineering notation
2.1694881 × 10^6
Prime Factorization
3 × 13 × 556279
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21694881
Product of the distinct prime numbers
The prime factorization of 21694881 is 3 × 13 × 556279.
Since it has a total of 3 prime factors.
10 , 3 , 23 , 46 , 613 , 753 , 2199 , 7106 , 80490 , 42929 , 961601 , 364554 , 8839804 , 9020261 , 69248950 , 60087482 , 852085511 , 149569699 , 5771093203 , 636572463
n×2
43389762
n×3
65084643
n×4
86779524
n×5
108474405
n÷2
10847440.5
n÷3
7231627
n÷3
5423720.25
n÷5
4338976.2
n2
470667861604161
n3
1.0211083248027E+22
n4
2.2152823594703E+29
n5
4.8060287170108E+36
2 √n
4657.7764008162
3 √n
278.90251087032
4 √n
68.247904003099
5 √n
29.327257638987
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
-21694880
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 21694881 can be divided by 8 positive divisors.
The sum of these divisors (counting 21694881) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010110000100110100001
3
Ternary
1111211012210010
4
Quaternary
1102300212201
5
Quinary
21023214011
6
Senary
2052555133
8
Octal
122604641
10
Decimal
21694881
12
Duodecimal
7322aa9
16
Hexadecimal
14b09a1
20
Vigesimal
6fbh41
36
Base36
cwzvl
md5
6480918dce5eea9b9fa8021eb7a0daed
sha1
0c4f7f33c2274e935bc156ec77aa374e212c3521
sha256
e4ae9f8ab7f16cb8671afb6eb585f08a5b2ba246490f85362e9394b5b8bc4a6d
sha512
505d94a0c6a6a089dade0d52024e92be0b05872e092793d43c5081cab3f59e9102b092e4efe7c4172841288df80d300c09697fcd408e11342d4f4ccc1ba9fa10
ripemd-160
6a1d4b94216f7509ca7c00c0542ad6e8e99dcf59
Diameter
43389762
Circumference
136312957.54021
Area
1.4786466962964E+15
Volume
4.2772085489593E+22
Surface area
5.9145867851858E+15
Circumference
136312957.54021
Perimeter
86779524
Area
470667861604161
Diagonal
30681194.94427
Surface area
2824007169624966
Volume
1.0211083248027E+22
Space diagonal
37576636.156161
Perimeter
65084643
Area
2.0380516244705E+14
Altitude
18788318.07808
Surface area
2.0380516244705E+14
Volume
1.2033877013233E+21
Height
10227064.981423