21506770 is an even 8-digits composite number following 21506769
and preceding 21506771 . In scientific notation, it is written as 2.1506770 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 8461440 positive integers (up to 21506770) that are relatively prime to 21506770.
21506770 has 16 divisors, whose sum is 39347928
The reverse of 21506770 is 07760512
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred six thousand seven hundred seventy
Scientific notation
2.1506770 × 10^7
Engineering notation
2.1506770 × 10^6
Prime Factorization
2 × 5 × 61 × 35257
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21506770
Product of the distinct prime numbers
The prime factorization of 21506770 is 2 × 5 × 61 × 35257.
Since it has a total of 4 prime factors.
6 , 2 , 5 , 86 , 895 , 529 , 8942 , 7106 , 4847 , 65065 , 131855 , 646384 , 1120863 , 1496066 , 61549756 , 73036424 , 571863732 , 745650363 , 5927588266 , 2045974367
n×2
43013540
n×3
64520310
n×4
86027080
n×5
107533850
n÷2
10753385
n÷3
7168923.3333333
n÷3
5376692.5
n÷5
4301354
n2
462541155832900
n3
9.9477662540323E+21
n4
2.1394432083924E+29
n5
4.6012513010956E+36
2 √n
4637.539218163
3 √n
278.09407129876
4 √n
68.099480307584
5 √n
29.276222431452
1 , 2 , 5 , 10 , 61 , 122 , 305 , 610 , 35257 , 70514 , 176285 , 352570 , 2150677 , 4301354 , 10753385 , 21506770
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
-21506769
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 21506770 can be divided by 16 positive divisors.
The sum of these divisors (counting 21506770) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010000010101011010010
3
Ternary
1111110122202001
4
Quaternary
1102002223102
5
Quinary
21001204040
6
Senary
2044544214
8
Octal
122025322
10
Decimal
21506770
12
Duodecimal
725206a
16
Hexadecimal
1482ad2
20
Vigesimal
6e86ia
36
Base36
csyqa
md5
f822a8a6ca29e17767d6520eb1eec202
sha1
3cef02f623adf0da90f19238e9253cc128ee4845
sha256
5c21fda4be21c1e7cc067f9ae6df7448435a067dc4e47bcfabc1adbaf3e82711
sha512
8f35192280c5abf354895f0077a6afa7e0d4585e65ed737ae100bb8bcb6ca3bc55758519f93e54fe63f02afeecbba30fbc03dbb0a61d0539b61ab03add9d6b50
ripemd-160
c9445a38530fe5ac41f526c65d7b7c5da18d8c90
Diameter
43013540
Circumference
135131021.26889
Area
1.4531158971476E+15
Volume
4.1669105844395E+22
Surface area
5.8124635885903E+15
Circumference
135131021.26889
Perimeter
86027080
Area
462541155832900
Diagonal
30415165.816839
Surface area
2775246934997400
Volume
9.9477662540323E+21
Space diagonal
37250818.346698
Perimeter
64520310
Area
2.0028619562355E+14
Altitude
18625409.173349
Surface area
2.0028619562355E+14
Volume
1.1723554959808E+21
Height
10138388.605613