28978049 is an odd 8-digits composite number following 28978048
and preceding 28978050 . In scientific notation, it is written as 2.8978049 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 28953600 positive integers (up to 28978049) that are relatively prime to 28978049.
28978049 has 4 divisors, whose sum is 29002500
The reverse of 28978049 is 94087982
Previous prime number is 1249
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-eight million nine hundred seventy-eight thousand forty-nine
Scientific notation
2.8978049 × 10^7
Engineering notation
2.8978049 × 10^6
Prime Factorization
1249 × 23201
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28978049
Product of the distinct prime numbers
The prime factorization of 28978049 is 1249 × 23201.
Since it has a total of 2 prime factors.
6 , 10 , 53 , 20 , 257 , 256 , 3643 , 1635 , 22528 , 28753 , 93614 , 521791 , 7432245 , 3254464 , 38742733 , 63017834 , 223328665 , 219450554 , 6508605095 , 9205763324
n×2
57956098
n×3
86934147
n×4
115912196
n×5
144890245
n÷2
14489024.5
n÷3
9659349.6666667
n÷3
7244512.25
n÷5
5795609.8
n2
839727323846401
n3
2.433365953706E+22
n4
7.0514197841424E+29
n5
2.0433638802445E+37
2 √n
5383.1263221292
3 √n
307.15414527006
4 √n
73.369791618412
5 √n
31.075192561902
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
-28978048
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 28978049 can be divided by 4 positive divisors.
The sum of these divisors (counting 28978049) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100010101110000001
3
Ternary
2000112020102002
4
Quaternary
1232202232001
5
Quinary
24404244144
6
Senary
2513033345
8
Octal
156425601
10
Decimal
28978049
12
Duodecimal
9855855
16
Hexadecimal
1ba2b81
20
Vigesimal
912529
36
Base36
h93lt
md5
7a5e0b3aaf9711ad889b76cec8455827
sha1
3afeeda94e113e82cb3bf63d1113c5f83b9bce71
sha256
ae0f25c8b675d6650d94878c87aae2c01bc7a376a9f2e893568028634b1620d1
sha512
0d365b6b531c28b54958a7b5cab293f8685ac5da2f457a4ccc5bf95d18816ff3f865df08e7f407f44a191cbdc72a8b8432fa9b6f7221c106c66369ff8f0aa126
ripemd-160
ff8a5c19f9df7a1ba2cb5db0e0c473b6373f8161
Diameter
57956098
Circumference
182074451.70753
Area
2.6380811916145E+15
Volume
1.0192859471544E+23
Surface area
1.0552324766458E+16
Circumference
182074451.70753
Perimeter
115912196
Area
839727323846401
Diagonal
40981149.906912
Surface area
5038363943078406
Volume
2.433365953706E+22
Space diagonal
50191453.17222
Perimeter
86934147
Area
3.6361259735145E+14
Altitude
25095726.58611
Surface area
3.6361259735145E+14
Volume
2.86774927829E+21
Height
13660383.302304