61505905 is an odd 8-digits composite number following 61505904
and preceding 61505906 . In scientific notation, it is written as 6.1505905 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 48611568 positive integers (up to 61505905) that are relatively prime to 61505905.
61505905 has 8 divisors, whose sum is 74696832
The reverse of 61505905 is 50950516
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
sixty-one million five hundred five thousand nine hundred five
Scientific notation
6.1505905 × 10^7
Engineering notation
6.1505905 × 10^6
Prime Factorization
5 × 83 × 148207
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
61505905
Product of the distinct prime numbers
The prime factorization of 61505905 is 5 × 83 × 148207.
Since it has a total of 3 prime factors.
1 , 2 , 40 , 4 , 709 , 27 , 8881 , 9357 , 26695 , 79628 , 274103 , 37627 , 6919893 , 1684703 , 41572330 , 2982643 , 658716967 , 420972799 , 7215372154 , 9102434405
n×2
123011810
n×3
184517715
n×4
246023620
n×5
307529525
n÷2
30752952.5
n÷3
20501968.333333
n÷3
15376476.25
n÷5
12301181
n2
3782976349869025
n3
2.3267538399229E+23
n4
1.4310910063668E+31
n5
8.8020547483953E+38
2 √n
7842.5700506913
3 √n
394.73497149835
4 √n
88.558286177473
5 √n
36.122962696062
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-61505904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61505905 can be divided by 8 positive divisors.
The sum of these divisors (counting 61505905) is 1, the average is 0.125.
Base
System
Value
2
Binary
11101010101000000101110001
3
Ternary
11021201211020111
4
Quaternary
3222220011301
5
Quinary
111221142110
6
Senary
10034141321
8
Octal
352500561
10
Decimal
61505905
12
Duodecimal
18721841
16
Hexadecimal
3aa8171
20
Vigesimal
j484f5
36
Base36
10ma9d
md5
2016238fe45157a173dafa226f00aac7
sha1
673ecb1df6548575b73692f2540cd0e828a293f9
sha256
37d99a0c0902b782f4fca747877261e8bec642a926921b039cf1e5e540e5b1ac
sha512
f20e4678c675a8eb8959426167e442f5f2ff36b663bef5eaa6d23af76dccdf14dd05a7a39c04abde434abd88a7e2ab2b24ddb65f50eca2df1e2257e7db553f88
ripemd-160
534d2205a901b3e954d91d226790a2938befe10d
Diameter
123011810
Circumference
386452998.60078
Area
1.1884570709452E+16
Volume
9.7462836936182E+23
Surface area
4.753828283781E+16
Circumference
386452998.60078
Perimeter
246023620
Area
3782976349869025
Diagonal
86982485.017031
Surface area
22697858099214150
Volume
2.3267538399229E+23
Space diagonal
106531352.4255
Perimeter
184517715
Area
1.6380768104512E+15
Altitude
53265676.212752
Surface area
1.6380768104512E+15
Volume
2.7421056972689E+22
Height
28994161.672344