61639940 is an even 8-digits composite number following 61639939
and preceding 61639941 . In scientific notation, it is written as 6.1639940 × 10^7.
The sum of its digits is 38. It has a total of 5 prime factors and 24 positive divisors.
There are 24627168 positive integers (up to 61639940) that are relatively prime to 61639940.
61639940 has 24 divisors, whose sum is 129595200
The reverse of 61639940 is 04993616
Previous prime number is 2203
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
sixty-one million six hundred thirty-nine thousand nine hundred forty
Scientific notation
6.1639940 × 10^7
Engineering notation
6.1639940 × 10^6
Prime Factorization
2 × 2 × 5 × 2203 × 1399
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
30819970
Product of the distinct prime numbers
The prime factorization of 61639940 is 2 × 2 × 5 × 2203 × 1399.
Since it has a total of 5 prime factors.
2 , 4 , 37 , 16 , 402 , 688 , 3313 , 5303 , 4221 , 28025 , 380212 , 426495 , 1356017 , 1942115 , 11065040 , 85496338 , 661030806 , 145000397 , 9722441664 , 8351669549
n×2
123279880
n×3
184919820
n×4
246559760
n×5
308199700
n÷2
30819970
n÷3
20546646.666667
n÷3
15409985
n÷5
12327988
n2
3799482203203600
n3
2.3419985503654E+23
n4
1.4436065012461E+31
n5
8.8983818120419E+38
2 √n
7851.1107494418
3 √n
395.0215017938
4 √n
88.606493833363
5 √n
36.138692978623
1 , 2 , 4 , 5 , 10 , 20 , 1399 , 2203 , 2798 , 4406 , 5596 , 6995 , 8812 , 11015 , 13990 , 22030 , 27980 , 44060 , 3081997 , 6163994 , 12327988 , 15409985 , 30819970 , 61639940
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-61639939
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61639940 can be divided by 24 positive divisors.
The sum of these divisors (counting 61639940) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
11101011001000110100000100
3
Ternary
11021222122002202
4
Quaternary
3223020310010
5
Quinary
111234434230
6
Senary
10041054032
8
Octal
353106404
10
Decimal
61639940
12
Duodecimal
18787318
16
Hexadecimal
3ac8d04
20
Vigesimal
j54jh0
36
Base36
10p5ok
md5
97f475bda9dd133625d968b187888dd1
sha1
f291385e1722302bf06e48ac7503a618ef8340ef
sha256
36223a87212b9140f5145d05089f81b33aa3d154cd1aa513decec8309406964a
sha512
0f3060bd78d8aed67f57f9720d5963516c9c1b43bc6778759d814f2b2ea5ef8c3b5dcd07ba366c7174b6c062a00fc5ee94f68aa0c500a85f4f676fedbd468793
ripemd-160
a144759cfd4b81e7c3192e72f96c7fb868526dfb
Diameter
123279880
Circumference
387295165.34343
Area
1.193642537703E+16
Volume
9.8101405873944E+23
Surface area
4.7745701508118E+16
Circumference
387295165.34343
Perimeter
246559760
Area
3799482203203600
Diagonal
87172039.131864
Surface area
22796893219221600
Volume
2.3419985503654E+23
Space diagonal
106763507.8555
Perimeter
184919820
Area
1.6452240546006E+15
Altitude
53381753.927749
Surface area
1.6452240546006E+15
Volume
2.7600717608207E+22
Height
29057346.377288