61805921 is an odd 8-digits composite number following 61805920
and preceding 61805922 . In scientific notation, it is written as 6.1805921 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 60368532 positive integers (up to 61805921) that are relatively prime to 61805921.
61805921 has 4 divisors, whose sum is 63243312
The reverse of 61805921 is 12950816
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
sixty-one million eight hundred five thousand nine hundred twenty-one
Scientific notation
6.1805921 × 10^7
Engineering notation
6.1805921 × 10^6
Prime Factorization
43 × 1437347
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
61805921
Product of the distinct prime numbers
The prime factorization of 61805921 is 43 × 1437347.
Since it has a total of 2 prime factors.
5 , 5 , 39 , 16 , 297 , 448 , 397 , 5091 , 34762 , 23531 , 61355 , 714075 , 5394183 , 1108494 , 74804165 , 91722286 , 906893126 , 813209931 , 6253420377 , 5661092008
n×2
123611842
n×3
185417763
n×4
247223684
n×5
309029605
n÷2
30902960.5
n÷3
20601973.666667
n÷3
15451480.25
n÷5
12361184.2
n2
3819971870658241
n3
2.3609687966013E+23
n4
1.459218509262E+31
n5
9.0188343905186E+38
2 √n
7861.6741855663
3 √n
395.37574884393
4 √n
88.666082498136
5 √n
36.158134548514
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-61805920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61805921 can be divided by 4 positive divisors.
The sum of these divisors (counting 61805921) is 1, the average is 0.25.
Base
System
Value
2
Binary
11101011110001010101100001
3
Ternary
11022022001210012
4
Quaternary
3223301111201
5
Quinary
111310242141
6
Senary
10044414305
8
Octal
353612541
10
Decimal
61805921
12
Duodecimal
18847395
16
Hexadecimal
3af1561
20
Vigesimal
j65eg1
36
Base36
10spr5
md5
581f237d58ef0a0921c35bfef4c7ba64
sha1
1a6749186735c7219e23f33cd4377486290f673f
sha256
75e40fca8ce44e47a1befd16d9efb21a4debccf28fb47e01f295a601f9dbd9ca
sha512
bbbaab194837636f3805b1184973a986ae49d151d10438c7b914bf229a8821a42f56004f9375d13463c81633d6062fbc53e16139a3282bf1a5672b569c1c4ced
ripemd-160
55bc3126b5b771ace7075b1a13e9d1ab735caafa
Diameter
123611842
Circumference
388338054.7239
Area
1.200079556578E+16
Volume
9.8896029690096E+23
Surface area
4.8003182263118E+16
Circumference
388338054.7239
Perimeter
247223684
Area
3819971870658241
Diagonal
87406771.71316
Surface area
22919831223949446
Volume
2.3609687966013E+23
Space diagonal
107050995.38059
Perimeter
185417763
Area
1.654096340866E+15
Altitude
53525497.690294
Surface area
1.654096340866E+15
Volume
2.782428410411E+22
Height
29135590.571053