21870149 is an odd 8-digits composite number following 21870148
and preceding 21870150 . In scientific notation, it is written as 2.1870149 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 18745836 positive integers (up to 21870149) that are relatively prime to 21870149.
21870149 has 4 divisors, whose sum is 24994464
The reverse of 21870149 is 94107812
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million eight hundred seventy thousand one hundred forty-nine
Scientific notation
2.1870149 × 10^7
Engineering notation
2.1870149 × 10^6
Prime Factorization
7 × 3124307
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21870149
Product of the distinct prime numbers
The prime factorization of 21870149 is 7 × 3124307.
Since it has a total of 2 prime factors.
10 , 5 , 11 , 17 , 567 , 967 , 3772 , 7219 , 97 , 9542 , 961429 , 789035 , 9760604 , 1338976 , 90878997 , 68043387 , 394845174 , 883827173 , 9925137669 , 8996287565
n×2
43740298
n×3
65610447
n×4
87480596
n×5
109350745
n÷2
10935074.5
n÷3
7290049.6666667
n÷3
5467537.25
n÷5
4374029.8
n2
478303417282201
n3
1.0460567003171E+22
n4
2.2877415898383E+29
n5
5.0033249443261E+36
2 √n
4676.5531109996
3 √n
279.65156062034
4 √n
68.385328185215
5 √n
29.374490896264
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
-21870148
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 21870149 can be divided by 4 positive divisors.
The sum of these divisors (counting 21870149) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011011011011001000101
3
Ternary
1112011010012112
4
Quaternary
1103123121011
5
Quinary
21044321044
6
Senary
2100430405
8
Octal
123333105
10
Decimal
21870149
12
Duodecimal
73a8405
16
Hexadecimal
14db645
20
Vigesimal
6gdf79
36
Base36
d0r45
md5
5ba3181e7539aa2d5f22554fccc89956
sha1
b73de927d49d09b5e27a187e0c709c415fd341ef
sha256
40073991d9901de733e94c0c7b19fe5ca63be833955d8a815de383a373e435e8
sha512
706720c99268f4170ef0249d1d359bd9a2454b248aafdb341948ef8beadb4b8949dcbff17bb9cd474f717e5cd8bfaca94ce866c6fdc2deb10d140a63a01c9dca
ripemd-160
3e4c65464f0334216368dc412629e6030a74249b
Diameter
43740298
Circumference
137414198.86263
Area
1.5026345019207E+15
Volume
4.3817120599394E+22
Surface area
6.0105380076826E+15
Circumference
137414198.86263
Perimeter
87480596
Area
478303417282201
Diagonal
30929061.32692
Surface area
2869820503693206
Volume
1.0460567003171E+22
Space diagonal
37880209.237102
Perimeter
65610447
Area
2.0711145504165E+14
Altitude
18940104.618551
Surface area
2.0711145504165E+14
Volume
1.2327896438331E+21
Height
10309687.108973