61981838 is an even 8-digits composite number following 61981837
and preceding 61981839 . In scientific notation, it is written as 6.1981838 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 29359800 positive integers (up to 61981838) that are relatively prime to 61981838.
61981838 has 8 divisors, whose sum is 97866120
The reverse of 61981838 is 83818916
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
sixty-one million nine hundred eighty-one thousand eight hundred thirty-eight
Scientific notation
6.1981838 × 10^7
Engineering notation
6.1981838 × 10^6
Prime Factorization
2 × 19 × 1631101
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
61981838
Product of the distinct prime numbers
The prime factorization of 61981838 is 2 × 19 × 1631101.
Since it has a total of 3 prime factors.
7 , 5 , 44 , 83 , 437 , 472 , 4802 , 6300 , 39447 , 68625 , 548835 , 631905 , 437170 , 186778 , 35891993 , 32050532 , 873967793 , 31793635 , 3397452904 , 985174470
n×2
123963676
n×3
185945514
n×4
247927352
n×5
309909190
n÷2
30990919
n÷3
20660612.666667
n÷3
15495459.5
n÷5
12396367.6
n2
3841748241858244
n3
2.3811861716364E+23
n4
1.4759029553821E+31
n5
9.1479177884214E+38
2 √n
7872.8545013864
3 √n
395.75051029728
4 √n
88.729107407808
5 √n
36.178694394275
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-61981837
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61981838 can be divided by 8 positive divisors.
The sum of these divisors (counting 61981838) is 1, the average is 0.125.
Base
System
Value
2
Binary
11101100011100010010001110
3
Ternary
11022122000002122
4
Quaternary
3230130102032
5
Quinary
111331404323
6
Senary
10052252542
8
Octal
354342216
10
Decimal
61981838
12
Duodecimal
18911152
16
Hexadecimal
3b1c48e
20
Vigesimal
j77ebi
36
Base36
10whhq
md5
79d092b7d21e392da32845ab68d324ce
sha1
8f49a483946e30c30f0c86785466a19c41a859d3
sha256
5c3096a2b3406fe1125d654e48bca19868028ff09c5f5b603c5007dc17838623
sha512
34f190b65b394185077dd8d2b12aa0faf83b40984303d42fb5952cc360b5f3c18ff21e9f42ce02382234a6d18f0b1a28073b9d71e9be8e1a6e6a452167c97ddd
ripemd-160
154fbf05342b9302df8957762aca9764dbaeb7ce
Diameter
123963676
Circumference
389443373.83359
Area
1.2069208053563E+16
Volume
9.9742893115235E+23
Surface area
4.8276832214253E+16
Circumference
389443373.83359
Perimeter
247927352
Area
3841748241858244
Diagonal
87655555.920412
Surface area
23050489451149464
Volume
2.3811861716364E+23
Space diagonal
107355692.5625
Perimeter
185945514
Area
1.6635257861967E+15
Altitude
53677846.281252
Surface area
1.6635257861967E+15
Volume
2.8062548153863E+22
Height
29218518.640137