61809105 is an odd 8-digits composite number following 61809104
and preceding 61809106 . In scientific notation, it is written as 6.1809105 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 32964848 positive integers (up to 61809105) that are relatively prime to 61809105.
61809105 has 4 divisors, whose sum is 65929728
The reverse of 61809105 is 50190816
Previous prime number is 15
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
sixty-one million eight hundred nine thousand one hundred five
Scientific notation
6.1809105 × 10^7
Engineering notation
6.1809105 × 10^6
Prime Factorization
15 × 4120607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
61809105
Product of the distinct prime numbers
The prime factorization of 61809105 is 15 × 4120607.
Since it has a total of 2 prime factors.
7 , 5 , 78 , 60 , 385 , 85 , 9472 , 9864 , 96141 , 24960 , 358107 , 382488 , 6481677 , 4618985 , 67936985 , 25309369 , 81541201 , 688311153 , 9980043773 , 2432650613
n×2
123618210
n×3
185427315
n×4
247236420
n×5
309045525
n÷2
30904552.5
n÷3
20603035
n÷3
15452276.25
n÷5
12361821
n2
3820365460901025
n3
2.361333699112E+23
n4
1.4595192254846E+31
n5
9.0211577057493E+38
2 √n
7861.8766843547
3 √n
395.38253813287
4 √n
88.667224408767
5 √n
36.158507086051
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
-61809104
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 61809105 can be divided by 4 positive divisors.
The sum of these divisors (counting 61809105) is 1, the average is 0.25.
Base
System
Value
2
Binary
11101011110010000111010001
3
Ternary
11022022020011010
4
Quaternary
3223302013101
5
Quinary
111310342410
6
Senary
10044441133
8
Octal
353620721
10
Decimal
61809105
12
Duodecimal
188491a9
16
Hexadecimal
3af21d1
20
Vigesimal
j662f5
36
Base36
10ss7l
md5
69af8ebc99757e49411a16f745faa449
sha1
284529a6b570d65dc851289a22214070120d51bc
sha256
c2cdc2b5ee3565ae8477b26e1b80ac2103387791d57eb63f5630ac34c813f534
sha512
41b394a9ac3f0fd2c098a0804fb2603004c3b17c40d8cbc19ee5bd382726a64b08eed03c01c52c6fecd4491060cf24651b0c0806bb3dba93b1343aa40d5ef8be
ripemd-160
c5e9ea3f2cfb97c299c7fe08752ca53441b6df9c
Diameter
123618210
Circumference
388358060.38592
Area
1.2002032065995E+16
Volume
9.8911314690726E+23
Surface area
4.8008128263979E+16
Circumference
388358060.38592
Perimeter
247236420
Area
3820365460901025
Diagonal
87411274.569143
Surface area
22922192765406150
Volume
2.361333699112E+23
Space diagonal
107056510.23036
Perimeter
185427315
Area
1.6542667704405E+15
Altitude
53528255.11518
Surface area
1.6542667704405E+15
Volume
2.7828584521441E+22
Height
29137091.523048