28742731 is an odd 8-digits prime number following 28742730
and preceding 28742732 . In scientific notation, it is written as 2.8742731 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 28742730 positive integers (up to 28742731) that are relatively prime to 28742731.
28742731 has 2 divisors, whose sum is 28742732
The reverse of 28742731 is 13724782
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-eight million seven hundred forty-two thousand seven hundred thirty-one
Scientific notation
2.8742731 × 10^7
Engineering notation
2.8742731 × 10^6
Prime Factorization
28742731
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
28742731
Product of the distinct prime numbers
The prime factorization of 28742731 is 28742731.
Since it has a total of 1 prime factors.
10 , 8 , 67 , 88 , 761 , 469 , 851 , 9827 , 29468 , 85852 , 277295 , 3374 , 7593064 , 3787046 , 69038642 , 28522882 , 673655763 , 962256569 , 2677901090 , 5371278207
n×2
57485462
n×3
86228193
n×4
114970924
n×5
143713655
n÷2
14371365.5
n÷3
9580910.3333333
n÷3
7185682.75
n÷5
5748546.2
n2
826144585338361
n3
2.3745651583487E+22
n4
6.8251487588389E+29
n5
1.9617341481029E+37
2 √n
5361.224766786
3 √n
306.32046325317
4 √n
73.220384912851
5 √n
31.024558225782
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
28742732
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
14371366
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
5361.2248600483
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999304172
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28742731 can be divided by 2 positive divisors.
The sum of these divisors (counting 28742731) is 28742732, the average is 14371366.
Base
System
Value
2
Binary
1101101101001010001001011
3
Ternary
2000002021121121
4
Quaternary
1231221101023
5
Quinary
24324231411
6
Senary
2504020111
8
Octal
155512113
10
Decimal
28742731
12
Duodecimal
9761637
16
Hexadecimal
1b6944b
20
Vigesimal
8jcggb
36
Base36
h4217
md5
0bbb613de9f2945148f657e633b1f9f9
sha1
d90093c94b127a4a74ecfcd7f8f1d88f35223754
sha256
77a2aad2399c28fbc6b431c1bb380920fbb2f32098470c4e06581a26426350b6
sha512
72117c1913bd1b115a56f679f98290abba3a993180c0b63266d05c5ba2f9fe907b58a26a8810499564fefbaa186d60fd050f42c2c533380540b2ef138c055858
ripemd-160
24d25e59ee1f7791edbd836a073d27d008cc42c5
Diameter
57485462
Circumference
180595905.10742
Area
2.595409760102E+15
Volume
9.9465552759181E+22
Surface area
1.0381639040408E+16
Circumference
180595905.10742
Perimeter
114970924
Area
826144585338361
Diagonal
40648359.999842
Surface area
4956867512030166
Volume
2.3745651583487E+22
Space diagonal
49783870.440285
Perimeter
86228193
Area
3.5773109905099E+14
Altitude
24891935.220143
Surface area
3.5773109905099E+14
Volume
2.7984518763961E+21
Height
13549453.333281