21869946 is an even 8-digits composite number following 21869945
and preceding 21869947 . In scientific notation, it is written as 2.1869946 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 6110640 positive integers (up to 21869946) that are relatively prime to 21869946.
21869946 has 16 divisors, whose sum is 33707520
The reverse of 21869946 is 64996812
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million eight hundred sixty-nine thousand nine hundred forty-six
Scientific notation
2.1869946 × 10^7
Engineering notation
2.1869946 × 10^6
Prime Factorization
2 × 189 × 47 × 1231
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21869946
Product of the distinct prime numbers
The prime factorization of 21869946 is 2 × 189 × 47 × 1231.
Since it has a total of 4 prime factors.
7 , 7 , 82 , 34 , 66 , 797 , 6333 , 9344 , 95806 , 16055 , 530707 , 755528 , 8592152 , 1193465 , 83850232 , 67637660 , 458905308 , 106760039 , 6464318777 , 6867030955
n×2
43739892
n×3
65609838
n×4
87479784
n×5
109349730
n÷2
10934973
n÷3
7289982
n÷3
5467486.5
n÷5
4373989.2
n2
478294538042916
n3
1.0460275719094E+22
n4
2.2876566512169E+29
n5
5.0030927428654E+36
2 √n
4676.5314069297
3 √n
279.65069537029
4 √n
68.385169495511
5 √n
29.374436364913
1 , 2 , 47 , 94 , 189 , 378 , 1231 , 2462 , 8883 , 17766 , 57857 , 115714 , 232659 , 465318 , 10934973 , 21869946
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
-21869945
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 21869946 can be divided by 16 positive divisors.
The sum of these divisors (counting 21869946) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011011011010101111010
3
Ternary
1112011002221000
4
Quaternary
1103123111322
5
Quinary
21044314241
6
Senary
2100425430
8
Octal
123332572
10
Decimal
21869946
12
Duodecimal
73a8276
16
Hexadecimal
14db57a
20
Vigesimal
6gdeh6
36
Base36
d0qyi
md5
0ea914d6d048a13d4e787d03c054e821
sha1
a932301b355f5247a59464f99d39dcb74058007a
sha256
4831c7207d6ec8aee08698b7fc4ad3c0e51467fde090d85b36558619f8b3fe89
sha512
e0428f127bac92a09b1e00c63cd53a25e3fb7e7b260cac4b0e0eec6cb115861a7989e23812220e148f871c8237a0509ed77c5552340e5c5d01e5753727156c17
ripemd-160
d3912c0bc0f034215d5b55e363a8c0a57dd41b3e
Diameter
43739892
Circumference
137412923.37601
Area
1.5026066069677E+15
Volume
4.3815900471504E+22
Surface area
6.010426427871E+15
Circumference
137412923.37601
Perimeter
87479784
Area
478294538042916
Diagonal
30928774.241567
Surface area
2869767228257496
Volume
1.0460275719094E+22
Space diagonal
37879857.630788
Perimeter
65609838
Area
2.0710761021825E+14
Altitude
18939928.815394
Surface area
2.0710761021825E+14
Volume
1.2327553156753E+21
Height
10309591.413856