261640 is an even 6-digits composite number following 261639
and preceding 261641 . In scientific notation, it is written as 2.61640 × 10^5.
The sum of its digits is 19. It has a total of 6 prime factors and 32 positive divisors.
There are 100800 positive integers (up to 261640) that are relatively prime to 261640.
261640 has 32 divisors, whose sum is 610560
The reverse of 261640 is 046162
Previous prime number is 31
Is Prime? no
Number parity even
Number length 6
Sum of Digits 19
Digital Root 1
Name
two hundred sixty-one thousand six hundred forty
Scientific notation
2.61640 × 10^5
Engineering notation
2.61640 × 10^3
Prime Factorization
2 × 2 × 2 × 5 × 31 × 211
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
65410
Product of the distinct prime numbers
The prime factorization of 261640 is 2 × 2 × 2 × 5 × 31 × 211.
Since it has a total of 6 prime factors.
2 , 9 , 69 , 30 , 894 , 452 , 2322 , 857 , 72005 , 69951 , 26772 , 483004 , 5915352 , 1000542 , 32834390 , 60580327 , 425520222 , 424721638 , 8668778693 , 4717189001
n×2
523280
n×3
784920
n×4
1046560
n×5
1308200
n÷2
130820
n÷3
87213.333333333
n÷3
65410
n÷5
52328
n2
68455489600
n3
17910694298944000
n4
4.6861540563757E+21
n5
1.2260853473101E+27
2 √n
511.50757570147
3 √n
63.958958061239
4 √n
22.61653323791
5 √n
12.121066337526
1 , 2 , 4 , 5 , 8 , 10 , 20 , 31 , 40 , 62 , 124 , 155 , 211 , 248 , 310 , 422 , 620 , 844 , 1055 , 1240 , 1688 , 2110 , 4220 , 6541 , 8440 , 13082 , 26164 , 32705 , 52328 , 65410 , 130820 , 261640
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-261639
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 261640 can be divided by 32 positive divisors.
The sum of these divisors (counting 261640) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111111111000001000
3
Ternary
111021220101
4
Quaternary
333320020
5
Quinary
31333030
6
Senary
5335144
8
Octal
777010
10
Decimal
261640
12
Duodecimal
1074b4
16
Hexadecimal
3fe08
20
Vigesimal
1ce20
36
Base36
5lvs
md5
51d6303dc83a2044e89385053bb7bf9d
sha1
a8652f617c0c711157628bf9ca887e325bb8cf25
sha256
4954f139d91e1dcb7815e4ec3c7fdd1bbea0d3ace1e9fc17ad34f84c190c2c01
sha512
301469b6caad50b714b7226866deaffe5c21b9fbe3f67b0f36ff33d56ffe33a5dfd0e63101af957a78e0fb36a4ed6cfc47ecaff85cfd0d2a1d05aa5481dcd638
ripemd-160
650bf8cdb075e13892620df83916b5dc9ca7b5ef
Diameter
523280
Circumference
1643932.6037705
Area
215059263225.25
Volume
7.502414084034E+16
Surface area
860237052901.01
Circumference
1643932.6037705
Perimeter
1046560
Area
68455489600
Diagonal
370014.8364593
Surface area
410732937600
Volume
17910694298944000
Space diagonal
453173.77329232
Perimeter
784920
Area
29642096511.051
Altitude
226586.88664616
Surface area
29642096511.051
Volume
2.1107955657571E+15
Height
123338.27881977