21691715 is an odd 8-digits composite number following 21691714
and preceding 21691716 . In scientific notation, it is written as 2.1691715 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 17353368 positive integers (up to 21691715) that are relatively prime to 21691715.
21691715 has 4 divisors, whose sum is 26030064
The reverse of 21691715 is 51719612
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million six hundred ninety-one thousand seven hundred fifteen
Scientific notation
2.1691715 × 10^7
Engineering notation
2.1691715 × 10^6
Prime Factorization
5 × 4338343
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21691715
Product of the distinct prime numbers
The prime factorization of 21691715 is 5 × 4338343.
Since it has a total of 2 prime factors.
5 , 7 , 56 , 53 , 825 , 476 , 5724 , 4790 , 86534 , 33514 , 95836 , 272009 , 1287320 , 4332772 , 66560539 , 16632273 , 729042226 , 657679098 , 8916480961 , 4583736082
n×2
43383430
n×3
65075145
n×4
86766860
n×5
108458575
n÷2
10845857.5
n÷3
7230571.6666667
n÷3
5422928.75
n÷5
4338343
n2
470530499641225
n3
1.0206613497025E+22
n4
2.2139895109262E+29
n5
4.8025229484001E+36
2 √n
4657.4365266743
3 √n
278.88894317961
4 √n
68.245413960751
5 √n
29.326401625828
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
-21691714
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 21691715 can be divided by 4 positive divisors.
The sum of these divisors (counting 21691715) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101111110101000011
3
Ternary
1111211001102212
4
Quaternary
1102233311003
5
Quinary
21023113330
6
Senary
2052532335
8
Octal
122576503
10
Decimal
21691715
12
Duodecimal
73210ab
16
Hexadecimal
14afd43
20
Vigesimal
6fb95f
36
Base36
cwxfn
md5
8d1f6153ad5bcca62ab900763ad41816
sha1
9c620bb307748551bd453daa57467924909c4066
sha256
a0d4c8aee6b412497f1f38ed291add682601d1ca8aa36d0d7b335e4cdd0962ba
sha512
7e4bda26dfe351320603c09ce425ffd5aa4237669f0725f031fd6a10fc9d7b9a211999ace893d9d9ca2253c064f66b89a9dad0ac8285b2c41dc0bc9594d72aab
ripemd-160
b7044ca37a449ea9d6cbf434fd49357874661026
Diameter
43383430
Circumference
136293064.97553
Area
1.4782151609628E+15
Volume
4.2753362640379E+22
Surface area
5.9128606438512E+15
Circumference
136293064.97553
Perimeter
86766860
Area
470530499641225
Diagonal
30676717.544132
Surface area
2823182997847350
Volume
1.0206613497025E+22
Space diagonal
37571152.483304
Perimeter
65075145
Area
2.0374568297234E+14
Altitude
18785576.241652
Surface area
2.0374568297234E+14
Volume
1.2028609361161E+21
Height
10225572.514711