61661245 is an odd 8-digits composite number following 61661244
and preceding 61661246 . In scientific notation, it is written as 6.1661245 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 49328992 positive integers (up to 61661245) that are relatively prime to 61661245.
61661245 has 4 divisors, whose sum is 73993500
The reverse of 61661245 is 54216616
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
sixty-one million six hundred sixty-one thousand two hundred forty-five
Scientific notation
6.1661245 × 10^7
Engineering notation
6.1661245 × 10^6
Prime Factorization
5 × 12332249
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
61661245
Product of the distinct prime numbers
The prime factorization of 61661245 is 5 × 12332249.
Since it has a total of 2 prime factors.
7 , 2 , 78 , 49 , 340 , 839 , 9356 , 577 , 17675 , 91489 , 286691 , 118986 , 883543 , 5570246 , 78060813 , 16485156 , 721298920 , 102635148 , 1183600236 , 8221697239
n×2
123322490
n×3
184983735
n×4
246644980
n×5
308306225
n÷2
30830622.5
n÷3
20553748.333333
n÷3
15415311.25
n÷5
12332249
n2
3802109134950025
n3
2.3444278288689E+23
n4
1.445603387407E+31
n5
8.9137704643736E+38
2 √n
7852.4674466056
3 √n
395.06700780643
4 √n
88.614149246074
5 √n
36.141190802044
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
-61661244
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 61661245 can be divided by 4 positive divisors.
The sum of these divisors (counting 61661245) is 1, the average is 0.25.
Base
System
Value
2
Binary
11101011001110000000111101
3
Ternary
11022000201022211
4
Quaternary
3223032000331
5
Quinary
111241124440
6
Senary
10041340421
8
Octal
353160075
10
Decimal
61661245
12
Duodecimal
18797711
16
Hexadecimal
3ace03d
20
Vigesimal
j57d25
36
Base36
10pm4d
md5
1964e99c1fedf431fbace507e90462ba
sha1
3813a36ca9a08f3ddca38979069ae3e7b4c55af6
sha256
80fff74462e8ba5cf14f8ed35ed2ed0bbfea9df6e2425b79e648cde23c241187
sha512
4644f3773e3d164df9de0b7f926c67f9c9d3ffbf0b7d064f1198db8e63f96b10f46efb1073334db2b0f0f980c8b441394f23d53a76acfd050b9fc987cb8b1e2c
ripemd-160
e2e0014278a489bdc450dbd64d655c5aa6c889e4
Diameter
123322490
Circumference
387429028.6064
Area
1.1944678126506E+16
Volume
9.8203163253947E+23
Surface area
4.7778712506023E+16
Circumference
387429028.6064
Perimeter
246644980
Area
3802109134950025
Diagonal
87202168.95181
Surface area
22812654809700150
Volume
2.3444278288689E+23
Space diagonal
106800409.19795
Perimeter
184983735
Area
1.6463615494138E+15
Altitude
53400204.598976
Surface area
1.6463615494138E+15
Volume
2.7629346929928E+22
Height
29067389.650603