28907907 is an odd 8-digits composite number following 28907906
and preceding 28907908 . In scientific notation, it is written as 2.8907907 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 16518792 positive integers (up to 28907907) that are relatively prime to 28907907.
28907907 has 4 divisors, whose sum is 30284496
The reverse of 28907907 is 70970982
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-eight million nine hundred seven thousand nine hundred seven
Scientific notation
2.8907907 × 10^7
Engineering notation
2.8907907 × 10^6
Prime Factorization
21 × 1376567
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28907907
Product of the distinct prime numbers
The prime factorization of 28907907 is 21 × 1376567.
Since it has a total of 2 prime factors.
4 , 2 , 35 , 43 , 28 , 158 , 8559 , 9697 , 41273 , 73707 , 194235 , 772997 , 5798764 , 3331555 , 47395145 , 94954047 , 914368475 , 48706781 , 5746656084 , 329649086
n×2
57815814
n×3
86723721
n×4
115631628
n×5
144539535
n÷2
14453953.5
n÷3
9635969
n÷3
7226976.75
n÷5
5781581.4
n2
835667087120649
n3
2.4157386437445E+22
n4
6.9833948049671E+29
n5
2.0187532756627E+37
2 √n
5376.6073875633
3 √n
306.90612060868
4 √n
73.325352965828
5 √n
31.060134338981
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
-28907906
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 28907907 can be divided by 4 positive divisors.
The sum of these divisors (counting 28907907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101110010001100110000011
3
Ternary
2000101200012020
4
Quaternary
1232101212003
5
Quinary
24400023112
6
Senary
2511332523
8
Octal
156214603
10
Decimal
28907907
12
Duodecimal
9821143
16
Hexadecimal
1b91983
20
Vigesimal
90d9f7
36
Base36
h7lhf
md5
3be46d06e0cde308eb18484b1a7a2ce5
sha1
18a2e9852979258a969847290c7981262d67539a
sha256
6ca77d2c899f7493f130c1dd8a857a6625c0f461054ad5ecf1a64ee89f03ca21
sha512
bf71a2ed3eec719d0bc18544be90e6705d3d72dce8b4287aac6b6ec42c05b5915e315de33f0ff5f557b57a11c0a9d14c7c6ebde3b4c75ad5e508e5c4dcbc6ca9
ripemd-160
f8d55bfb5223936364ad84831ffa70d4d957a2ff
Diameter
57815814
Circumference
181633736.52371
Area
2.625325581745E+15
Volume
1.0119022368241E+23
Surface area
1.050130232698E+16
Circumference
181633736.52371
Perimeter
115631628
Area
835667087120649
Diagonal
40881954.13922
Surface area
5014002522723894
Volume
2.4157386437445E+22
Space diagonal
50069963.664476
Perimeter
86723721
Area
3.6185446327651E+14
Altitude
25034981.832238
Surface area
3.6185446327651E+14
Volume
2.8469752942768E+21
Height
13627318.046407