21553917 is an odd 8-digits composite number following 21553916
and preceding 21553918 . In scientific notation, it is written as 2.1553917 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 11196720 positive integers (up to 21553917) that are relatively prime to 21553917.
21553917 has 4 divisors, whose sum is 21647456
The reverse of 21553917 is 71935512
Previous prime number is 231
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million five hundred fifty-three thousand nine hundred seventeen
Scientific notation
2.1553917 × 10^7
Engineering notation
2.1553917 × 10^6
Prime Factorization
231 × 93307
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21553917
Product of the distinct prime numbers
The prime factorization of 21553917 is 231 × 93307.
Since it has a total of 2 prime factors.
7 , 6 , 52 , 12 , 274 , 120 , 854 , 3359 , 81282 , 91127 , 923093 , 308281 , 7437823 , 1913231 , 99306519 , 70823556 , 940347956 , 718268588 , 2944742841 , 105226976
n×2
43107834
n×3
64661751
n×4
86215668
n×5
107769585
n÷2
10776958.5
n÷3
7184639
n÷3
5388479.25
n÷5
4310783.4
n2
464571338042889
n3
1.0013332060755E+22
n4
2.1582652813096E+29
n5
4.6519070737329E+36
2 √n
4642.6196268917
3 √n
278.29713498514
4 √n
68.136771473938
5 √n
29.289047019309
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21553916
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21553917 can be divided by 4 positive divisors.
The sum of these divisors (counting 21553917) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001110001011111101
3
Ternary
1111120001102020
4
Quaternary
1102032023331
5
Quinary
21004211132
6
Senary
2045550353
8
Octal
122161375
10
Decimal
21553917
12
Duodecimal
72753b9
16
Hexadecimal
148e2fd
20
Vigesimal
6ee4fh
36
Base36
ctz3x
md5
72d51a3ffec24299fd24548389b0ca77
sha1
d425dca16724a18fce22c50c5418b58d3a2a2dcc
sha256
6ba8012219bceb147939145dd57b521077ae6bbba3e9b0ad02dc4b81e3c4ad5c
sha512
01621a63d35ffdbec78c60a1c3e2dfe1822e08618ba747a6b11bab73d2a870caef699012da26350cf5aa2f495c778ec7267f2563429d9b4a976f936a551fa207
ripemd-160
d81735f9904e4eeb2e7f51ae0cf974b7cf7e423e
Diameter
43107834
Circumference
135427254.60657
Area
1.4594939026639E+15
Volume
4.1943747253366E+22
Surface area
5.8379756106557E+15
Circumference
135427254.60657
Perimeter
86215668
Area
464571338042889
Diagonal
30481841.743664
Surface area
2787428028257334
Volume
1.0013332060755E+22
Space diagonal
37332479.346123
Perimeter
64661751
Area
2.0116529030763E+14
Altitude
18666239.673061
Surface area
2.0116529030763E+14
Volume
1.1800825004055E+21
Height
10160613.914555