28997907 is an odd 8-digits composite number following 28997906
and preceding 28997908 . In scientific notation, it is written as 2.8997907 × 10^7.
The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors.
There are 19331936 positive integers (up to 28997907) that are relatively prime to 28997907.
28997907 has 4 divisors, whose sum is 38663880
The reverse of 28997907 is 70979982
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
twenty-eight million nine hundred ninety-seven thousand nine hundred seven
Scientific notation
2.8997907 × 10^7
Engineering notation
2.8997907 × 10^6
Prime Factorization
3 × 9665969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28997907
Product of the distinct prime numbers
The prime factorization of 28997907 is 3 × 9665969.
Since it has a total of 2 prime factors.
6 , 9 , 5 , 23 , 562 , 584 , 8637 , 2093 , 36519 , 24599 , 355529 , 807280 , 6534511 , 6086938 , 88670977 , 31438742 , 662248509 , 587335690 , 8742008282 , 82526405
n×2
57995814
n×3
86993721
n×4
115991628
n×5
144989535
n÷2
14498953.5
n÷3
9665969
n÷3
7249476.75
n÷5
5799581.4
n2
840878610380649
n3
2.4383719742107E+22
n4
7.0707683739569E+29
n5
2.0503748372654E+37
2 √n
5384.9704734567
3 √n
307.22429117339
4 √n
73.382358053259
5 √n
31.079450419924
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
-28997906
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 28997907 can be divided by 4 positive divisors.
The sum of these divisors (counting 28997907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110100111100100010011
3
Ternary
2000120020122120
4
Quaternary
1232213210103
5
Quinary
24410413112
6
Senary
2513305323
8
Octal
156474423
10
Decimal
28997907
12
Duodecimal
9865243
16
Hexadecimal
1ba7913
20
Vigesimal
914ef7
36
Base36
h9ixf
md5
268f52113c65fcb6b958472989815490
sha1
ca530b41ff5446e7d00b5f4c2ee0a1bbee3b63dd
sha256
4638e0e1253d33c0fc108923fd95a654e0f549aa67f4d8662951782054960541
sha512
b11df4ad63274cbd9b4c5c1dec0ea3fc92259395d796787b38a83ce1f87dd5569b5bb92bd4b8c861f2e27df797e04e0377c83e770a669a7bf2e435b5a72ee1e9
ripemd-160
169534bc56d4254c7e6cd041aaaea15f14424638
Diameter
57995814
Circumference
182199223.20136
Area
2.6416980649326E+15
Volume
1.02138286412E+23
Surface area
1.0566792259731E+16
Circumference
182199223.20136
Perimeter
115991628
Area
840878610380649
Diagonal
41009233.359834
Surface area
5045271662283894
Volume
2.4383719742107E+22
Space diagonal
50225848.237157
Perimeter
86993721
Area
3.641111190443E+14
Altitude
25112924.118579
Surface area
3.641111190443E+14
Volume
2.8736489300327E+21
Height
13669744.453278