21553679 is an odd 8-digits composite number following 21553678
and preceding 21553680 . In scientific notation, it is written as 2.1553679 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 18169200 positive integers (up to 21553679) that are relatively prime to 21553679.
21553679 has 12 divisors, whose sum is 25487208
The reverse of 21553679 is 97635512
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million five hundred fifty-three thousand six hundred seventy-nine
Scientific notation
2.1553679 × 10^7
Engineering notation
2.1553679 × 10^6
Prime Factorization
7 × 7 × 61 × 7211
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
3079097
Product of the distinct prime numbers
The prime factorization of 21553679 is 7 × 7 × 61 × 7211.
Since it has a total of 4 prime factors.
2 , 10 , 9 , 96 , 874 , 132 , 7381 , 6598 , 10085 , 64464 , 696621 , 282917 , 1400448 , 2595387 , 40166578 , 43952862 , 700719145 , 20908671 , 3640430749 , 481108776
n×2
43107358
n×3
64661037
n×4
86214716
n×5
107768395
n÷2
10776839.5
n÷3
7184559.6666667
n÷3
5388419.75
n÷5
4310735.8
n2
464561078435041
n3
1.0013000360483E+22
n4
2.1581699559673E+29
n5
4.6516502458363E+36
2 √n
4642.5939947404
3 √n
278.29611065528
4 √n
68.136583380299
5 √n
29.288982336644
1 , 7 , 49 , 61 , 427 , 2989 , 7211 , 50477 , 353339 , 439871 , 3079097 , 21553679
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21553678
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21553679 can be divided by 12 positive divisors.
The sum of these divisors (counting 21553679) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010001110001000001111
3
Ternary
1111120001002102
4
Quaternary
1102032020033
5
Quinary
21004204204
6
Senary
2045545315
8
Octal
122161017
10
Decimal
21553679
12
Duodecimal
727523b
16
Hexadecimal
148e20f
20
Vigesimal
6ee43j
36
Base36
ctyxb
md5
3798fce62e34dcdcd4e11615eede2017
sha1
5e9f21a9f37aa715fdf5ea9bdbb81d011a6fdd0c
sha256
8b0bcf7a1706e30256d0b16da1a54a7e8e74232a3cce5ef28fba9ee5861204cc
sha512
4ba25abbaff401f8977f3588be114a1b3f4137eec0de4313244fecbb0c7e5abbd8e31cdf13c5a46fe3ee298b2a5e5e90660b206d22e9d77fb89e88c6ed187884
ripemd-160
de82766042e87539bc280e98303eebe6bef70550
Diameter
43107358
Circumference
135425759.20847
Area
1.4594616711553E+15
Volume
4.1942357830513E+22
Surface area
5.8378466846211E+15
Circumference
135425759.20847
Perimeter
86214716
Area
464561078435041
Diagonal
30481505.160836
Surface area
2787366470610246
Volume
1.0013000360483E+22
Space diagonal
37332067.11803
Perimeter
64661037
Area
2.0116084776712E+14
Altitude
18666033.559015
Surface area
2.0116084776712E+14
Volume
1.1800434091534E+21
Height
10160501.720279