261909085 is an odd 9-digits composite number following 261909084
and preceding 261909086 . In scientific notation, it is written as 2.61909085 × 10^8.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 209527264 positive integers (up to 261909085) that are relatively prime to 261909085.
261909085 has 4 divisors, whose sum is 314290908
The reverse of 261909085 is 580909162
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 40
Digital Root 4
Name
two hundred sixty-one million nine hundred nine thousand eighty-five
Scientific notation
2.61909085 × 10^8
Engineering notation
2.61909085 × 10^6
Prime Factorization
5 × 52381817
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
261909085
Product of the distinct prime numbers
The prime factorization of 261909085 is 5 × 52381817.
Since it has a total of 2 prime factors.
5 , 9 , 9 , 96 , 612 , 841 , 4146 , 9653 , 22060 , 45326 , 385120 , 121374 , 2348699 , 702943 , 39046411 , 88700086 , 358655720 , 677527201 , 5271478168 , 645876662
n×2
523818170
n×3
785727255
n×4
1047636340
n×5
1309545425
n÷2
130954542.5
n÷3
87303028.333333
n÷3
65477271.25
n÷5
52381817
n2
68596368805537225
n3
1.7966012188181E+25
n4
4.7054618133053E+33
n5
1.2324031980252E+42
2 √n
16183.605438838
3 √n
639.80876854949
4 √n
127.21480039224
5 √n
48.264755742901
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
-261909084
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 261909085 can be divided by 4 positive divisors.
The sum of these divisors (counting 261909085) is 1, the average is 0.25.
Base
System
Value
2
Binary
1111100111000110101001011101
3
Ternary
200020211100201111
4
Quaternary
33213012221131
5
Quinary
1014022042320
6
Senary
41553342021
8
Octal
1747065135
10
Decimal
261909085
12
Duodecimal
73867911
16
Hexadecimal
f9c6a5d
20
Vigesimal
41gice5
36
Base36
4bxmcd
md5
fdf7eff8d0666a5cb0a2352250d53628
sha1
f8a2c39019bbb3bab2c7cd743342d537246924b2
sha256
c130823e9e5bc99ce57eab961e45ce73081b86eb0251dea5312b55ac4a6c03a0
sha512
3902a6bca0cb63d6866efe8c15e50d2edac083cf1871e8a97199ed2e3797a5b64643d5cadb477a6806b974e2e1bd5acc7124dbfe65a273ce9f884fe4786c9d88
ripemd-160
dd3f80fdc613b7207e009c7b3175c11d3b7d16da
Diameter
523818170
Circumference
1645623314.6888
Area
2.1550184830241E+17
Volume
7.5255855872925E+25
Surface area
8.6200739320965E+17
Circumference
1645623314.6888
Perimeter
1047636340
Area
68596368805537225
Diagonal
370395380.11573
Surface area
411578212833223350
Volume
1.7966012188181E+25
Space diagonal
453639842.18388
Perimeter
785727255
Area
2.9703098996481E+16
Altitude
226819921.09194
Surface area
2.9703098996481E+16
Volume
2.1173148415238E+24
Height
123465126.70524