28267987 is an odd 8-digits composite number following 28267986
and preceding 28267988 . In scientific notation, it is written as 2.8267987 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 25698160 positive integers (up to 28267987) that are relatively prime to 28267987.
28267987 has 4 divisors, whose sum is 30837816
The reverse of 28267987 is 78976282
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
twenty-eight million two hundred sixty-seven thousand nine hundred eighty-seven
Scientific notation
2.8267987 × 10^7
Engineering notation
2.8267987 × 10^6
Prime Factorization
11 × 2569817
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28267987
Product of the distinct prime numbers
The prime factorization of 28267987 is 11 × 2569817.
Since it has a total of 2 prime factors.
7 , 5 , 25 , 41 , 258 , 917 , 7633 , 5963 , 56495 , 52186 , 657615 , 754245 , 9930342 , 1025817 , 54505789 , 37006898 , 189339538 , 269219555 , 3597281489 , 9905522204
n×2
56535974
n×3
84803961
n×4
113071948
n×5
141339935
n÷2
14133993.5
n÷3
9422662.3333333
n÷3
7066996.75
n÷5
5653597.4
n2
799079089032169
n3
2.2588357300733E+22
n4
6.3852739052848E+29
n5
1.8049883974603E+37
2 √n
5316.7647117397
3 √n
304.62459231786
4 √n
72.916148497707
5 √n
30.921387735043
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
-28267986
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 28267987 can be divided by 4 positive divisors.
The sum of these divisors (counting 28267987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011110101010111010011
3
Ternary
1222012011101111
4
Quaternary
1223311113103
5
Quinary
24214033422
6
Senary
2445514151
8
Octal
153652723
10
Decimal
28267987
12
Duodecimal
9572957
16
Hexadecimal
1af55d3
20
Vigesimal
8gd9j7
36
Base36
gtvpv
md5
a54cbb3f2820252dc1b2d3a2100e01cf
sha1
7e9f20d3279f5a0733df109874fb93d6c974cfa8
sha256
4611ed2c65fe14e78aaf4e8f7bbcb017c5d338a45788f7aed3f7fe6aedc1bc03
sha512
6bfd8f92b7005b725fc8dae7e7cbc2822ce7f8263f8a4ec024d501ed2f40abd1f75d059edbd272b87ed2d7d5db9f82de81ba2e6ccf25a0910bb2f549b95067dd
ripemd-160
3aeb890000b4fc31e73cc9bd07452e3b78b64dfd
Diameter
56535974
Circumference
177613000.58194
Area
2.5103809957407E+15
Volume
9.4617889803526E+22
Surface area
1.0041523982963E+16
Circumference
177613000.58194
Perimeter
113071948
Area
799079089032169
Diagonal
39976970.596386
Surface area
4794474534193014
Volume
2.2588357300733E+22
Space diagonal
48961589.711697
Perimeter
84803961
Area
3.4601139536739E+14
Altitude
24480794.855848
Surface area
3.4601139536739E+14
Volume
2.6620634372022E+21
Height
13325656.865462