28731685 is an odd 8-digits composite number following 28731684
and preceding 28731686 . In scientific notation, it is written as 2.8731685 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 22985344 positive integers (up to 28731685) that are relatively prime to 28731685.
28731685 has 4 divisors, whose sum is 34478028
The reverse of 28731685 is 58613782
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-eight million seven hundred thirty-one thousand six hundred eighty-five
Scientific notation
2.8731685 × 10^7
Engineering notation
2.8731685 × 10^6
Prime Factorization
5 × 5746337
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28731685
Product of the distinct prime numbers
The prime factorization of 28731685 is 5 × 5746337.
Since it has a total of 2 prime factors.
9 , 7 , 58 , 48 , 131 , 413 , 9335 , 1723 , 76087 , 82921 , 511597 , 834497 , 9915719 , 5426729 , 19106079 , 86137828 , 315340089 , 595920757 , 3298085177 , 8850665416
n×2
57463370
n×3
86195055
n×4
114926740
n×5
143658425
n÷2
14365842.5
n÷3
9577228.3333333
n÷3
7182921.25
n÷5
5746337
n2
825509722939225
n3
2.3718285323927E+22
n4
6.814663026672E+29
n5
1.9579675146349E+37
2 √n
5360.19449274
3 √n
306.2812179755
4 √n
73.213349143035
5 √n
31.022173275218
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
-28731684
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 28731685 can be divided by 4 positive divisors.
The sum of these divisors (counting 28731685) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101100110100100100101
3
Ternary
2000001201110111
4
Quaternary
1231212210211
5
Quinary
24323403220
6
Senary
2503453021
8
Octal
155464445
10
Decimal
28731685
12
Duodecimal
9757171
16
Hexadecimal
1b66925
20
Vigesimal
8jb945
36
Base36
h3tid
md5
0ca3688f935ff7147ca5eeb245ca9127
sha1
8ada7eeedec13530e486c5bce1874beb8599b7c3
sha256
85975b36610693a9213fb65dd66e610581481aad920e34c3a9b732a380790e40
sha512
85ec6b559c788a3c67072c0d204cb39ac5cee77077bbeebe828fc7aedbf00162fd36724308be7de9a74394313322cd89b6c6d91a9442c1ee5048efc119e668bb
ripemd-160
34ea3a60d67da0ba6bb6cce8f1a5f033f0ce375a
Diameter
57463370
Circumference
180526501.04251
Area
2.5934152810528E+15
Volume
9.9350921239195E+22
Surface area
1.0373661124211E+16
Circumference
180526501.04251
Perimeter
114926740
Area
825509722939225
Diagonal
40632738.596832
Surface area
4953058337635350
Volume
2.3718285323927E+22
Space diagonal
49764738.207065
Perimeter
86195055
Area
3.5745619556821E+14
Altitude
24882369.103532
Surface area
3.5745619556821E+14
Volume
2.7952267317777E+21
Height
13544246.198944