61781492 is an even 8-digits composite number following 61781491
and preceding 61781493 . In scientific notation, it is written as 6.1781492 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 30717816 positive integers (up to 61781492) that are relatively prime to 61781492.
61781492 has 12 divisors, whose sum is 108722880
The reverse of 61781492 is 29418716
Previous prime number is 179
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
sixty-one million seven hundred eighty-one thousand four hundred ninety-two
Scientific notation
6.1781492 × 10^7
Engineering notation
6.1781492 × 10^6
Prime Factorization
2 × 2 × 179 × 86287
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
30890746
Product of the distinct prime numbers
The prime factorization of 61781492 is 2 × 2 × 179 × 86287.
Since it has a total of 4 prime factors.
3 , 1 , 3 , 26 , 857 , 192 , 3012 , 614 , 55693 , 14514 , 352489 , 940680 , 1602635 , 9601144 , 86889652 , 44070391 , 716881326 , 870255353 , 6719485253 , 3301971037
n×2
123562984
n×3
185344476
n×4
247125968
n×5
308907460
n÷2
30890746
n÷3
20593830.666667
n÷3
15445373
n÷5
12356298.4
n2
3816952753746064
n3
2.3581703601994E+23
n4
1.456912832433E+31
n5
9.0010248501655E+38
2 √n
7860.1203553126
3 √n
395.32365077723
4 √n
88.657319806729
5 √n
36.155275771427
1 , 2 , 4 , 179 , 358 , 716 , 86287 , 172574 , 345148 , 15445373 , 30890746 , 61781492
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-61781491
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61781492 can be divided by 12 positive divisors.
The sum of these divisors (counting 61781492) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
11101011101011010111110100
3
Ternary
11022020211021102
4
Quaternary
3223223113310
5
Quinary
111304001432
6
Senary
10044105232
8
Octal
353532764
10
Decimal
61781492
12
Duodecimal
18835218
16
Hexadecimal
3aeb5f4
20
Vigesimal
j62dec
36
Base36
10s6wk
md5
8df05a55637cc7d7dfaba362aec7a03c
sha1
dced979a6590192a417c2c56e8cf4490aaddedd0
sha256
58279787f8945b252e84688dfda2b7737a0c6de792e8a6171899cdb94c5ce18f
sha512
aa8e334d97982f9f9ccb9549cff9337814151e124bf16e860ace86166f40198234668bab38da24a8c5e8a8b4aa5a977a386a5feafeda398d9a8982c012c571c3
ripemd-160
c308f3025ef7c2e1d99d22c6486a123008c3bb8b
Diameter
123562984
Circumference
388184562.79003
Area
1.1991310730268E+16
Volume
9.8778809060209E+23
Surface area
4.7965242921072E+16
Circumference
388184562.79003
Perimeter
247125968
Area
3816952753746064
Diagonal
87372223.890045
Surface area
22901716522476384
Volume
2.3581703601994E+23
Space diagonal
107008683.11141
Perimeter
185344476
Area
1.6527890248945E+15
Altitude
53504341.555705
Surface area
1.6527890248945E+15
Volume
2.7791304214835E+22
Height
29124074.630015