21551709 is an odd 8-digits composite number following 21551708
and preceding 21551710 . In scientific notation, it is written as 2.1551709 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 13989888 positive integers (up to 21551709) that are relatively prime to 21551709.
21551709 has 16 divisors, whose sum is 29498112
The reverse of 21551709 is 90715512
Previous prime number is 433
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million five hundred fifty-one thousand seven hundred nine
Scientific notation
2.1551709 × 10^7
Engineering notation
2.1551709 × 10^6
Prime Factorization
3 × 47 × 433 × 353
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21551709
Product of the distinct prime numbers
The prime factorization of 21551709 is 3 × 47 × 433 × 353.
Since it has a total of 4 prime factors.
2 , 4 , 70 , 41 , 900 , 678 , 9098 , 9506 , 76822 , 75173 , 377712 , 101598 , 3776893 , 786542 , 3159404 , 12440113 , 819177492 , 655077358 , 3753167998 , 2710618981
n×2
43103418
n×3
64655127
n×4
86206836
n×5
107758545
n÷2
10775854.5
n÷3
7183903
n÷3
5387927.25
n÷5
4310341.8
n2
464476160820681
n3
1.0010255055445E+22
n4
2.1573810397072E+29
n5
4.6495248369887E+36
2 √n
4642.3818240209
3 √n
278.28763166906
4 √n
68.135026410951
5 √n
29.288446916173
1 , 3 , 47 , 141 , 353 , 433 , 1059 , 1299 , 16591 , 20351 , 49773 , 61053 , 152849 , 458547 , 7183903 , 21551709
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21551708
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21551709 can be divided by 16 positive divisors.
The sum of these divisors (counting 21551709) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001101101001011101
3
Ternary
1111112221101110
4
Quaternary
1102031221131
5
Quinary
21004123314
6
Senary
2045532233
8
Octal
122155135
10
Decimal
21551709
12
Duodecimal
7274079
16
Hexadecimal
148da5d
20
Vigesimal
6edj59
36
Base36
ctxel
md5
3523c930f41c6107deb954cb95c371ff
sha1
2022970eaafc49ced4578398afc021c82cee2235
sha256
6c0948ffe1c5abc02db7d94394e7cb0af5a96049cc4a25bd54bfc7847ce70061
sha512
fe8927b5e65a04bcd246f720c95b9ee9268e7f6d061734edfb17516129deb64b5920478cadd1136c84413999b0deaaf0c7382104ba18273f9394183a6b268227
ripemd-160
9f7d1cd857148796784ca25a4a050802f2e8ef9d
Diameter
43103418
Circumference
135413381.33341
Area
1.4591948946018E+15
Volume
4.1930858323659E+22
Surface area
5.8367795784074E+15
Circumference
135413381.33341
Perimeter
86206836
Area
464476160820681
Diagonal
30478719.160118
Surface area
2786856964924086
Volume
1.0010255055445E+22
Space diagonal
37328654.977939
Perimeter
64655127
Area
2.0112407736149E+14
Altitude
18664327.48897
Surface area
2.0112407736149E+14
Volume
1.179719871852E+21
Height
10159573.053373