28261661 is an odd 8-digits composite number following 28261660
and preceding 28261662 . In scientific notation, it is written as 2.8261661 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 28211424 positive integers (up to 28261661) that are relatively prime to 28261661.
28261661 has 4 divisors, whose sum is 28311900
The reverse of 28261661 is 16616282
Previous prime number is 569
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million two hundred sixty-one thousand six hundred sixty-one
Scientific notation
2.8261661 × 10^7
Engineering notation
2.8261661 × 10^6
Prime Factorization
569 × 49669
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28261661
Product of the distinct prime numbers
The prime factorization of 28261661 is 569 × 49669.
Since it has a total of 2 prime factors.
8 , 4 , 40 , 5 , 851 , 623 , 7934 , 6605 , 74406 , 98028 , 382721 , 390078 , 6526805 , 8350095 , 43900437 , 51142215 , 376282673 , 755728747 , 8174680318 , 201358542
n×2
56523322
n×3
84784983
n×4
113046644
n×5
141308305
n÷2
14130830.5
n÷3
9420553.6666667
n÷3
7065415.25
n÷5
5652332.2
n2
798721482478921
n3
2.2573195771237E+22
n4
6.3795600657333E+29
n5
1.8029696390689E+37
2 √n
5316.1697677933
3 √n
304.60186697678
4 √n
72.91206873895
5 √n
30.920003651974
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
-28261660
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 28261661 can be divided by 4 positive divisors.
The sum of these divisors (counting 28261661) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101011110011110100011101
3
Ternary
1222011211201012
4
Quaternary
1223303310131
5
Quinary
24213333121
6
Senary
2445425005
8
Octal
153636435
10
Decimal
28261661
12
Duodecimal
956b165
16
Hexadecimal
1af3d1d
20
Vigesimal
8gce31
36
Base36
gtqu5
md5
37588481d078381b59b55350059acc95
sha1
47acc87414f13da1beeb823a04d6f1582f9ddd42
sha256
c9219b4079c9ae42a5f056d868a641a6a611b68d4d4ce76f46c31ee3fe99e618
sha512
9aa0b2512b35f3bf38103728939e8527d1e28d49c7e6a300e8f7b1a4628fc7c2e019cf64d77288f5bd1b1078a8456b077ad76a02b2b56287574f357af0fe3af5
ripemd-160
d231964b1f52bc511c003e7b1172b8964a641c59
Diameter
56523322
Circumference
177573253.15169
Area
2.5092575416201E+15
Volume
9.4554381337282E+22
Surface area
1.0037030166481E+16
Circumference
177573253.15169
Perimeter
113046644
Area
798721482478921
Diagonal
39968024.281391
Surface area
4792328894873526
Volume
2.2573195771237E+22
Space diagonal
48950632.758288
Perimeter
84784983
Area
3.4585654718756E+14
Altitude
24475316.379144
Surface area
3.4585654718756E+14
Volume
2.6602766338155E+21
Height
13322674.760464