28779907 is an odd 8-digits composite number following 28779906
and preceding 28779908 . In scientific notation, it is written as 2.8779907 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 26566056 positive integers (up to 28779907) that are relatively prime to 28779907.
28779907 has 4 divisors, whose sum is 30993760
The reverse of 28779907 is 70997782
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-eight million seven hundred seventy-nine thousand nine hundred seven
Scientific notation
2.8779907 × 10^7
Engineering notation
2.8779907 × 10^6
Prime Factorization
13 × 2213839
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28779907
Product of the distinct prime numbers
The prime factorization of 28779907 is 13 × 2213839.
Since it has a total of 2 prime factors.
8 , 8 , 50 , 47 , 696 , 150 , 8807 , 8967 , 34829 , 48350 , 854086 , 195294 , 5809816 , 7604649 , 21690167 , 84493392 , 517067189 , 233712693 , 1147798998 , 7598497593
n×2
57559814
n×3
86339721
n×4
115119628
n×5
143899535
n÷2
14389953.5
n÷3
9593302.3333333
n÷3
7194976.75
n÷5
5755981.4
n2
828283046928649
n3
2.3837909060283E+22
n4
6.8605280582941E+29
n5
1.9744535948859E+37
2 √n
5364.6907646201
3 √n
306.45247185736
4 √n
73.244049346142
5 √n
31.032579542406
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
-28779906
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 28779907 can be divided by 4 positive divisors.
The sum of these divisors (counting 28779907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101110010010110000011
3
Ternary
2000011011121111
4
Quaternary
1231302112003
5
Quinary
24331424112
6
Senary
2504504151
8
Octal
155622603
10
Decimal
28779907
12
Duodecimal
977b057
16
Hexadecimal
1b72583
20
Vigesimal
8jh9f7
36
Base36
h4upv
md5
96b48ac3e2bf7131c5ea0211e2b64bd8
sha1
74f092c0d380826bf38b71bba121601515d86d26
sha256
4cfe4beedc51a34e5ab43fa680ca5b3cf47bd57e36130cf5dcf38a88a78d0fca
sha512
acd232be4a5d673646876ded258e48eed6fa3fc6567606c924cf375204602f2921ac6fca85ce4b754538535141ac271ddae6c7d65207404efd69e5a6c8f737a9
ripemd-160
d1d36109dbf9c63eaea0bc6b784f8bfccfdf64e3
Diameter
57559814
Circumference
180829488.80439
Area
2.602127935324E+15
Volume
9.9851999974303E+22
Surface area
1.0408511741296E+16
Circumference
180829488.80439
Perimeter
115119628
Area
828283046928649
Diagonal
40700934.803236
Surface area
4969698281571894
Volume
2.3837909060283E+22
Space diagonal
49848261.161107
Perimeter
86339721
Area
3.5865708008209E+14
Altitude
24924130.580554
Surface area
3.5865708008209E+14
Volume
2.8093245243057E+21
Height
13566978.267745