61291281 is an odd 8-digits composite number following 61291280
and preceding 61291282 . In scientific notation, it is written as 6.1291281 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 40343472 positive integers (up to 61291281) that are relatively prime to 61291281.
61291281 has 8 divisors, whose sum is 82756480
The reverse of 61291281 is 18219216
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
sixty-one million two hundred ninety-one thousand two hundred eighty-one
Scientific notation
6.1291281 × 10^7
Engineering notation
6.1291281 × 10^6
Prime Factorization
79 × 3 × 258613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
61291281
Product of the distinct prime numbers
The prime factorization of 61291281 is 79 × 3 × 258613.
Since it has a total of 3 prime factors.
1 , 2 , 59 , 84 , 245 , 101 , 2349 , 2252 , 41776 , 82651 , 629708 , 361663 , 5893713 , 3477441 , 1439476 , 95869125 , 857752524 , 648060962 , 1830894763 , 2627715129
n×2
122582562
n×3
183873843
n×4
245165124
n×5
306456405
n÷2
30645640.5
n÷3
20430427
n÷3
15322820.25
n÷5
12258256.2
n2
3756621126620961
n3
2.3024812108226E+23
n4
1.4112202288975E+31
n5
8.6495495602241E+38
2 √n
7828.8748233702
3 √n
394.27529567468
4 √n
88.480929150694
5 √n
36.097717318893
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
-61291280
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 61291281 can be divided by 8 positive divisors.
The sum of these divisors (counting 61291281) is 1, the average is 0.125.
Base
System
Value
2
Binary
11101001110011101100010001
3
Ternary
11021022220211110
4
Quaternary
3221303230101
5
Quinary
111142310111
6
Senary
10025403533
8
Octal
351635421
10
Decimal
61291281
12
Duodecimal
186395a9
16
Hexadecimal
3a73b11
20
Vigesimal
j31841
36
Base36
10honl
md5
b1706a0314dc4b4f35c44b9f57f769ab
sha1
90d17aba26c03f9fa6b826a2085a58eb5be0367f
sha256
7795fdd371ebf4d125a9ffaa0fc21937a3d3e422893081b74654259edc2f1124
sha512
2bee2d2d4d52d0de679e1426877d5e29e2c6320008aca1daf6445b29f2c05f2e97bed5bdfa9935d8dc700279029f7264bb3bc9a2d6e3e7f21f90d4c3a4b0a627
ripemd-160
f126a8f6e72269ccf029b44020124100b0064428
Diameter
122582562
Circumference
385104476.23742
Area
1.1801773333713E+16
Volume
9.6446107425985E+23
Surface area
4.720709333485E+16
Circumference
385104476.23742
Perimeter
245165124
Area
3756621126620961
Diagonal
86678960.84542
Surface area
22539726759725766
Volume
2.3024812108226E+23
Space diagonal
106159612.75298
Perimeter
183873843
Area
1.6266646640235E+15
Altitude
53079806.37649
Surface area
1.6266646640235E+15
Volume
2.7135001295455E+22
Height
28892986.948473