28972013 is an odd 8-digits composite number following 28972012
and preceding 28972014 . In scientific notation, it is written as 2.8972013 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 24790896 positive integers (up to 28972013) that are relatively prime to 28972013.
28972013 has 8 divisors, whose sum is 33167232
The reverse of 28972013 is 31027982
Previous prime number is 647
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million nine hundred seventy-two thousand thirteen
Scientific notation
2.8972013 × 10^7
Engineering notation
2.8972013 × 10^6
Prime Factorization
7 × 647 × 6397
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
28972013
Product of the distinct prime numbers
The prime factorization of 28972013 is 7 × 647 × 6397.
Since it has a total of 3 prime factors.
2 , 5 , 25 , 60 , 866 , 326 , 2176 , 5298 , 26524 , 99799 , 168108 , 345589 , 1393377 , 4842490 , 79773818 , 90603069 , 330992519 , 562725873 , 4358635162 , 9105536988
n×2
57944026
n×3
86916039
n×4
115888052
n×5
144860065
n÷2
14486006.5
n÷3
9657337.6666667
n÷3
7243003.25
n÷5
5794402.6
n2
839377537272169
n3
2.4318456921757E+22
n4
7.0455465007709E+29
n5
2.0412366481244E+37
2 √n
5382.5656521774
3 √n
307.13281750387
4 √n
73.365970668815
5 √n
31.073897888874
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28972012
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28972013 can be divided by 8 positive divisors.
The sum of these divisors (counting 28972013) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101110100001001111101101
3
Ternary
2000111221010112
4
Quaternary
1232201033231
5
Quinary
24404101023
6
Senary
2512545405
8
Octal
156411755
10
Decimal
28972013
12
Duodecimal
9852265
16
Hexadecimal
1ba13ed
20
Vigesimal
911a0d
36
Base36
h8yy5
md5
75f68c7d46c9d1f237fee25bab784f0e
sha1
5046db3e137b8688cd17663cfc701a53b6bf0b43
sha256
561dc959247b46a444c48682d54c989b8bd765a3b57b38aaa509d830722b734e
sha512
127f729362fc6dca95471614188df1cfbf069206b6ac33e49db78c6baf464f46caa2a2192066c89a835843bc401bacb6297b7a4068802daacf6341a481667ecc
ripemd-160
67510bd61bcb4c82065a53856790f3b7884d6229
Diameter
57944026
Circumference
182036526.40102
Area
2.6369823046825E+15
Volume
1.0186491414938E+23
Surface area
1.054792921873E+16
Circumference
182036526.40102
Perimeter
115888052
Area
839377537272169
Diagonal
40972613.71385
Surface area
5036265223633014
Volume
2.4318456921757E+22
Space diagonal
50180998.513546
Perimeter
86916039
Area
3.6346113532186E+14
Altitude
25090499.256773
Surface area
3.6346113532186E+14
Volume
2.8659576328946E+21
Height
13657537.904617