28742405 is an odd 8-digits composite number following 28742404
and preceding 28742406 . In scientific notation, it is written as 2.8742405 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 22993920 positive integers (up to 28742405) that are relatively prime to 28742405.
28742405 has 4 divisors, whose sum is 34490892
The reverse of 28742405 is 50424782
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million seven hundred forty-two thousand four hundred five
Scientific notation
2.8742405 × 10^7
Engineering notation
2.8742405 × 10^6
Prime Factorization
5 × 5748481
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28742405
Product of the distinct prime numbers
The prime factorization of 28742405 is 5 × 5748481.
Since it has a total of 2 prime factors.
5 , 6 , 44 , 40 , 423 , 629 , 4725 , 8965 , 57624 , 8226 , 835065 , 9780 , 1906794 , 3371335 , 40295046 , 2748127 , 187790455 , 73856503 , 6991886908 , 5711388090
n×2
57484810
n×3
86227215
n×4
114969620
n×5
143712025
n÷2
14371202.5
n÷3
9580801.6666667
n÷3
7185601.25
n÷5
5748481
n2
826125845184025
n3
2.3744843623247E+22
n4
6.8248391208102E+29
n5
1.9616229007017E+37
2 √n
5361.1943631993
3 √n
306.31930515342
4 √n
73.220177295601
5 √n
31.024487849367
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
-28742404
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 28742405 can be divided by 4 positive divisors.
The sum of these divisors (counting 28742405) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101101001001100000101
3
Ternary
2000002021011112
4
Quaternary
1231221030011
5
Quinary
24324224110
6
Senary
2504014405
8
Octal
155511405
10
Decimal
28742405
12
Duodecimal
9761405
16
Hexadecimal
1b69305
20
Vigesimal
8jcg05
36
Base36
h41s5
md5
8966de9dbf54f1c28a0dc83f8b6e8d55
sha1
d9743b61b41e3949e106a087a8695af5657138f3
sha256
392064aedd3a04c51deed99da88adf17966891d3fc1c914b5acdfdd34ba3d760
sha512
6c32f19f6d26089d7f0b6a673e0e5961906277cca3e8e3bc3830c263c84b493b5899ca90df0ae811a0305ef4bb69e20b6b456b72be2a2f2c2d7476cc42e19a75
ripemd-160
846c56ad51ded0cf91493f9152f521b17306370a
Diameter
57484810
Circumference
180593856.78901
Area
2.5953508861708E+15
Volume
9.946216838324E+22
Surface area
1.0381403544683E+16
Circumference
180593856.78901
Perimeter
114969620
Area
826125845184025
Diagonal
40647898.96622
Surface area
4956755071104150
Volume
2.3744843623247E+22
Space diagonal
49783305.791722
Perimeter
86227215
Area
3.5772298432613E+14
Altitude
24891652.895861
Surface area
3.5772298432613E+14
Volume
2.7983566573686E+21
Height
13549299.655407