28978023 is an odd 8-digits composite number following 28978022
and preceding 28978024 . In scientific notation, it is written as 2.8978023 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 19318680 positive integers (up to 28978023) that are relatively prime to 28978023.
28978023 has 4 divisors, whose sum is 38637368
The reverse of 28978023 is 32087982
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-eight million nine hundred seventy-eight thousand twenty-three
Scientific notation
2.8978023 × 10^7
Engineering notation
2.8978023 × 10^6
Prime Factorization
3 × 9659341
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28978023
Product of the distinct prime numbers
The prime factorization of 28978023 is 3 × 9659341.
Since it has a total of 2 prime factors.
9 , 6 , 58 , 94 , 328 , 467 , 3939 , 8076 , 47002 , 22000 , 431687 , 159572 , 7277267 , 7550908 , 93459356 , 84917603 , 177976405 , 834337791 , 3912935797 , 249705790
n×2
57956046
n×3
86934069
n×4
115912092
n×5
144890115
n÷2
14489011.5
n÷3
9659341
n÷3
7244505.75
n÷5
5795604.6
n2
839725816988529
n3
2.4333594038387E+22
n4
7.0513944771705E+29
n5
2.0433547134152E+37
2 √n
5383.1239071751
3 √n
307.15405340731
4 √n
73.369775160996
5 √n
31.075186985576
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
-28978022
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 28978023 can be divided by 4 positive divisors.
The sum of these divisors (counting 28978023) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100010101101100111
3
Ternary
2000112020101010
4
Quaternary
1232202231213
5
Quinary
24404244043
6
Senary
2513033303
8
Octal
156425547
10
Decimal
28978023
12
Duodecimal
9855833
16
Hexadecimal
1ba2b67
20
Vigesimal
912513
36
Base36
h93l3
md5
42d9f572020bdac6411231b6dec94019
sha1
20e886199dff8146f5385894b6136e23b8f60f27
sha256
6a1d0f8a52c06922049a45eb693263f175c569dcc64be4c64a87828995f7e091
sha512
26106aaec33908782d4d4a8d47f9c39bff25e3733b2fc704616bf8a1a03cece69ca30712d74bb8839296f7eeb1a725a645c771678caa59ed15d9ff8f1241a995
ripemd-160
f71bd43990d7ec2711381e9e426afb4be930a520
Diameter
57956046
Circumference
182074288.34471
Area
2.6380764576808E+15
Volume
1.0192832035525E+23
Surface area
1.0552305830723E+16
Circumference
182074288.34471
Perimeter
115912092
Area
839725816988529
Diagonal
40981113.137359
Surface area
5038354901931174
Volume
2.4333594038387E+22
Space diagonal
50191408.138899
Perimeter
86934069
Area
3.6361194486285E+14
Altitude
25095704.06945
Surface area
3.6361194486285E+14
Volume
2.8677415591974E+21
Height
13660371.045786