28378509 is an odd 8-digits composite number following 28378508
and preceding 28378510 . In scientific notation, it is written as 2.8378509 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 18919004 positive integers (up to 28378509) that are relatively prime to 28378509.
28378509 has 4 divisors, whose sum is 37838016
The reverse of 28378509 is 90587382
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million three hundred seventy-eight thousand five hundred nine
Scientific notation
2.8378509 × 10^7
Engineering notation
2.8378509 × 10^6
Prime Factorization
3 × 9459503
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28378509
Product of the distinct prime numbers
The prime factorization of 28378509 is 3 × 9459503.
Since it has a total of 2 prime factors.
10 , 2 , 16 , 57 , 652 , 333 , 1722 , 4438 , 63709 , 78524 , 379365 , 784310 , 7128333 , 7969993 , 55644817 , 24275492 , 450588975 , 840034031 , 666277064 , 4971882404
n×2
56757018
n×3
85135527
n×4
113514036
n×5
141892545
n÷2
14189254.5
n÷3
9459503
n÷3
7094627.25
n÷5
5675701.8
n2
805339773063081
n3
2.2854341997929E+22
n4
6.4857215007729E+29
n5
1.8405510598118E+37
2 √n
5327.1482990433
3 √n
305.02108248069
4 √n
72.987316014793
5 √n
30.945529259099
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
-28378508
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 28378509 can be divided by 4 positive divisors.
The sum of these divisors (counting 28378509) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101100010000010110001101
3
Ternary
1222101202222220
4
Quaternary
1230100112031
5
Quinary
24231103014
6
Senary
2452125553
8
Octal
154202615
10
Decimal
28378509
12
Duodecimal
96068b9
16
Hexadecimal
1b1058d
20
Vigesimal
8h7659
36
Base36
gw8zx
md5
718886eba8554bd6264cb2cb448dbc2b
sha1
5caeba62cd3c65a5c6f113e20e8c4a23875038c2
sha256
dbbe477b7b5fb00f70d3e684e32adfbfa5e1099e5dc0b7ac9fff0b5983092682
sha512
5f134872ad3d09228571c38a4f8a9a6398740921e401f5b9627cb4e93f30236024725e3360c188edc23c95b094e3a96c8690a09371dc9ad67f0bf679a11b7ad0
ripemd-160
b268bf34d7054ee6716ec2f5142fd7cf42319c8c
Diameter
56757018
Circumference
178307430.78846
Area
2.5300495146986E+15
Volume
9.5732043897762E+22
Surface area
1.0120198058795E+16
Circumference
178307430.78846
Perimeter
113514036
Area
805339773063081
Diagonal
40133272.307727
Surface area
4832038638378486
Volume
2.2854341997929E+22
Space diagonal
49153019.431051
Perimeter
85135527
Area
3.4872235107531E+14
Altitude
24576509.715525
Surface area
3.4872235107531E+14
Volume
2.693410034382E+21
Height
13377757.435909