61809215 is an odd 8-digits composite number following 61809214
and preceding 61809216 . In scientific notation, it is written as 6.1809215 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 45287424 positive integers (up to 61809215) that are relatively prime to 61809215.
61809215 has 16 divisors, whose sum is 68117280
The reverse of 61809215 is 51290816
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
sixty-one million eight hundred nine thousand two hundred fifteen
Scientific notation
6.1809215 × 10^7
Engineering notation
6.1809215 × 10^6
Prime Factorization
65 × 13 × 193 × 379
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
61809215
Product of the distinct prime numbers
The prime factorization of 61809215 is 65 × 13 × 193 × 379.
Since it has a total of 4 prime factors.
5 , 7 , 51 , 80 , 55 , 372 , 7609 , 4946 , 58329 , 10663 , 274857 , 83134 , 6205229 , 8959387 , 91516405 , 24727183 , 311527943 , 872979859 , 9630670440 , 2141151333
n×2
123618430
n×3
185427645
n×4
247236860
n×5
309046075
n÷2
30904607.5
n÷3
20603071.666667
n÷3
15452303.75
n÷5
12361843
n2
3820379058916225
n3
2.3613463063405E+23
n4
1.4595296153806E+31
n5
9.0212379795924E+38
2 √n
7861.8836801367
3 √n
395.38277268329
4 √n
88.667263858409
5 √n
36.158519956107
1 , 13 , 65 , 193 , 379 , 845 , 2509 , 4927 , 12545 , 24635 , 73147 , 163085 , 320255 , 950911 , 4754555 , 61809215
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
-61809214
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 61809215 can be divided by 16 positive divisors.
The sum of these divisors (counting 61809215) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11101011110010001000111111
3
Ternary
11022022020022012
4
Quaternary
3223302020333
5
Quinary
111310343330
6
Senary
10044441435
8
Octal
353621077
10
Decimal
61809215
12
Duodecimal
1884927b
16
Hexadecimal
3af223f
20
Vigesimal
j6630f
36
Base36
10ssan
md5
1d536157bb77de8dc40b9fbe5d9e0ac3
sha1
c3019df24d375b4e894db1761527e12b964fb28c
sha256
cb1941b3a68d3148e084420cdc08b9ba5b6de1a8d92ac086315e5df4ec16ddc0
sha512
ec1e593664325f09a7b4be3e8319c1c0bf33dc7ff86d850ab47ede83a6c1699fac88820e051c9cba40e38e150b4e49eae00957165bb74ad9c888296ef5b85ca4
ripemd-160
2820f39f9295f6251c3c26799fedc61943828814
Diameter
123618430
Circumference
388358751.5363
Area
1.200207478542E+16
Volume
9.8911842781076E+23
Surface area
4.8008299141678E+16
Circumference
388358751.5363
Perimeter
247236860
Area
3820379058916225
Diagonal
87411430.132635
Surface area
22922274353497350
Volume
2.3613463063405E+23
Space diagonal
107056700.75595
Perimeter
185427645
Area
1.6542726585538E+15
Altitude
53528350.377974
Surface area
1.6542726585538E+15
Volume
2.7828733099053E+22
Height
29137143.377545