61505981 is an odd 8-digits prime number following 61505980
and preceding 61505982 . In scientific notation, it is written as 6.1505981 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 61505980 positive integers (up to 61505981) that are relatively prime to 61505981.
61505981 has 2 divisors, whose sum is 61505982
The reverse of 61505981 is 18950516
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
sixty-one million five hundred five thousand nine hundred eighty-one
Scientific notation
6.1505981 × 10^7
Engineering notation
6.1505981 × 10^6
Prime Factorization
61505981
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
61505981
Product of the distinct prime numbers
The prime factorization of 61505981 is 61505981.
Since it has a total of 1 prime factors.
6 , 7 , 77 , 45 , 98 , 180 , 5878 , 580 , 48970 , 506 , 156657 , 681660 , 2326384 , 1849778 , 32132448 , 22987788 , 423093195 , 57768622 , 9386502568 , 7400067598
n×2
123011962
n×3
184517943
n×4
246023924
n×5
307529905
n÷2
30752990.5
n÷3
20501993.666667
n÷3
15376495.25
n÷5
12301196.2
n2
3782985698772361
n3
2.3267624651196E+23
n4
1.4310980797116E+31
n5
8.8021091299879E+38
2 √n
7842.5748960402
3 √n
394.73513408353
4 √n
88.558313534305
5 √n
36.122971623152
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
61505982
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
30752991
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
7842.5749597948
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999674828
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61505981 can be divided by 2 positive divisors.
The sum of these divisors (counting 61505981) is 61505982, the average is 30752991.
Base
System
Value
2
Binary
11101010101000000110111101
3
Ternary
11021201211100022
4
Quaternary
3222220012331
5
Quinary
111221142411
6
Senary
10034141525
8
Octal
352500675
10
Decimal
61505981
12
Duodecimal
187218a5
16
Hexadecimal
3aa81bd
20
Vigesimal
j484j1
36
Base36
10mabh
md5
23e407b7e4ed4575918957db08b20164
sha1
b87e07b126a61f5d650299d940b2874487584507
sha256
5b5a821551a399a28194f6ab1f8c86ea00b7c551e01d8eabae038ce67e698590
sha512
cf34c5b3fdac9d00774856783248fe3b1e17d10cc85b2719d632f35f5e3f5c910a19b7ab14cd1ff8a50213a483aa43d4b3e8b842369f1b648292345bf1951065
ripemd-160
47432c9d95e823b1f47b70085cfcc5d91d506cfe
Diameter
123011962
Circumference
386453476.12287
Area
1.1884600079898E+16
Volume
9.7463198227578E+23
Surface area
4.7538400319594E+16
Circumference
386453476.12287
Perimeter
246023924
Area
3782985698772361
Diagonal
86982592.497262
Surface area
22697914192634166
Volume
2.3267624651196E+23
Space diagonal
106531484.06137
Perimeter
184517943
Area
1.638080858645E+15
Altitude
53265742.030683
Surface area
1.638080858645E+15
Volume
2.7421158621607E+22
Height
28994197.499087