21752661 is an odd 8-digits composite number following 21752660
and preceding 21752662 . In scientific notation, it is written as 2.1752661 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 12225600 positive integers (up to 21752661) that are relatively prime to 21752661.
21752661 has 16 divisors, whose sum is 33692288
The reverse of 21752661 is 16625712
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million seven hundred fifty-two thousand six hundred sixty-one
Scientific notation
2.1752661 × 10^7
Engineering notation
2.1752661 × 10^6
Prime Factorization
3 × 7 × 61 × 16981
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21752661
Product of the distinct prime numbers
The prime factorization of 21752661 is 3 × 7 × 61 × 16981.
Since it has a total of 4 prime factors.
6 , 3 , 56 , 13 , 391 , 768 , 3331 , 7880 , 91127 , 88117 , 297659 , 677809 , 6400641 , 7454367 , 69800986 , 24174887 , 854962488 , 617255706 , 7953025536 , 4368763274
n×2
43505322
n×3
65257983
n×4
87010644
n×5
108763305
n÷2
10876330.5
n÷3
7250887
n÷3
5438165.25
n÷5
4350532.2
n2
473178260580921
n3
1.0292886294986E+22
n4
2.2389766628639E+29
n5
4.8703700334189E+36
2 √n
4663.9748069645
3 √n
279.14989183627
4 √n
68.293299868761
5 √n
29.342862487056
1 , 3 , 7 , 21 , 61 , 183 , 427 , 1281 , 16981 , 50943 , 118867 , 356601 , 1035841 , 3107523 , 7250887 , 21752661
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
-21752660
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 21752661 can be divided by 16 positive divisors.
The sum of these divisors (counting 21752661) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010111110101101010101
3
Ternary
1111221011001010
4
Quaternary
1102332231111
5
Quinary
21032041121
6
Senary
2054122433
8
Octal
122765525
10
Decimal
21752661
12
Duodecimal
7350419
16
Hexadecimal
14beb55
20
Vigesimal
6fj1d1
36
Base36
cy8gl
md5
703503f56fa26364d2638eb0c00a2f4f
sha1
4bddb8969dd1ffc442c82908c71a1a37a509d4d8
sha256
4b1d53059c3771f408aed6c0601faec82605400fdfb8444596bbab16bcbe1f7f
sha512
f0b673fd3ac444288af6fde7b82125672380c858af4dd76668b0d000a980ae16d03bf9fea71d7bfd6a15225119a9a69da220f64f1591eebf26ea965e13a40c98
ripemd-160
73bd1389718df6c97637de355516d94f24a13fd6
Diameter
43505322
Circumference
136675999.98726
Area
1.4865333472794E+15
Volume
4.3114741291419E+22
Surface area
5.9461333891177E+15
Circumference
136675999.98726
Perimeter
87010644
Area
473178260580921
Diagonal
30762908.203904
Surface area
2839069563485526
Volume
1.0292886294986E+22
Space diagonal
37676714.051822
Perimeter
65257983
Area
2.0489219709081E+14
Altitude
18838357.025911
Surface area
2.0489219709081E+14
Volume
1.2130282828612E+21
Height
10254302.734635