61781289 is an odd 8-digits composite number following 61781288
and preceding 61781290 . In scientific notation, it is written as 6.1781289 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 38838800 positive integers (up to 61781289) that are relatively prime to 61781289.
61781289 has 16 divisors, whose sum is 87174144
The reverse of 61781289 is 98218716
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-one million seven hundred eighty-one thousand two hundred eighty-nine
Scientific notation
6.1781289 × 10^7
Engineering notation
6.1781289 × 10^6
Prime Factorization
3 × 23 × 71 × 12611
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
61781289
Product of the distinct prime numbers
The prime factorization of 61781289 is 3 × 23 × 71 × 12611.
Since it has a total of 4 prime factors.
7 , 8 , 71 , 19 , 676 , 838 , 9937 , 331 , 95850 , 71945 , 886006 , 93295 , 7700682 , 2328948 , 67738669 , 72175937 , 956153639 , 513803421 , 5500638510 , 1204194257
n×2
123562578
n×3
185343867
n×4
247125156
n×5
308906445
n÷2
30890644.5
n÷3
20593763
n÷3
15445322.25
n÷5
12356257.8
n2
3816927670501521
n3
2.3581471150335E+23
n4
1.456893684184E+31
n5
9.0008769744847E+38
2 √n
7860.1074420138
3 √n
395.32321779541
4 √n
88.657246979667
5 √n
36.155252011785
1 , 3 , 23 , 69 , 71 , 213 , 1633 , 4899 , 12611 , 37833 , 290053 , 870159 , 895381 , 2686143 , 20593763 , 61781289
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-61781288
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61781289 can be divided by 16 positive divisors.
The sum of these divisors (counting 61781289) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11101011101011010100101001
3
Ternary
11022020210222220
4
Quaternary
3223223110221
5
Quinary
111304000124
6
Senary
10044104253
8
Octal
353532451
10
Decimal
61781289
12
Duodecimal
18835089
16
Hexadecimal
3aeb529
20
Vigesimal
j62d49
36
Base36
10s6qx
md5
607b224db5b80d8c9b264df0f77371b0
sha1
7827deb2f1c44115e5aa0466605db73eb5244e58
sha256
2572ef75311e0dda1fa51fc9beae534064a6b54d3db697190b040271d1b4a340
sha512
ae4e8a58c6073f9bfd05fb010e2baa34a433528c4652dfa2a59872fef4ab9457cb5cd351a2418bb9a9a530363d82bfda0c918ea0f85fd567edcd23f6f02d6884
ripemd-160
22e6da8a5644d0eb07180fd37820c48da2d4ef28
Diameter
123562578
Circumference
388183287.30342
Area
1.1991231928931E+16
Volume
9.8777835368977E+23
Surface area
4.7964927715725E+16
Circumference
388183287.30342
Perimeter
247125156
Area
3816927670501521
Diagonal
87371936.804692
Surface area
22901566023009126
Volume
2.3581471150335E+23
Space diagonal
107008331.5051
Perimeter
185343867
Area
1.652778163531E+15
Altitude
53504165.752548
Surface area
1.652778163531E+15
Volume
2.7791030267928E+22
Height
29123978.934897