61397981 is an odd 8-digits prime number following 61397980
and preceding 61397982 . In scientific notation, it is written as 6.1397981 × 10^7.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 61397980 positive integers (up to 61397981) that are relatively prime to 61397981.
61397981 has 2 divisors, whose sum is 61397982
The reverse of 61397981 is 18979316
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 44 Digital Root 8
Name
sixty-one million three hundred ninety-seven thousand nine hundred eighty-one
Scientific notation
6.1397981 × 10^7
Engineering notation
6.1397981 × 10^6
Prime Factorization
61397981
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
61397981 Product of the distinct prime numbers
The prime factorization of 61397981 is 61397981.
Since it has a total of 1 prime factors.
2 , 3 , 41 , 58 , 437 , 39 , 1641 , 4665 , 67453 , 37346 , 190030 , 837042 , 6486926 , 6866187 , 58897978 , 74627997 , 177024776 , 549657088 , 6490314029 , 4451360313
n×2
122795962
n×3
184193943
n×4
245591924
n×5
306989905
n÷2
30698990.5
n÷3
20465993.666667
n÷3
15349495.25
n÷5
12279596.2
n2
3769712070876361
n3
2.3145271010314E+23
n4
1.4210729097311E+31
n5
8.7251007511284E+38
2 √n7835.6863770827
3 √n394.50395672108
4 √n88.519412430736
5 √n36.110276844831
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
61397982 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
30698991 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
7835.6864408934 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999674256 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61397981 can be divided by 2 positive divisors.
The sum of these divisors (counting 61397981) is 61397982, the average is 30698991.
Base
System
Value
2
Binary
11101010001101101111011101
3
Ternary
11021112100012022
4
Quaternary
3222031233131
5
Quinary
111204213411
6
Senary
10031545525
8
Octal
352155735
10
Decimal
61397981
12
Duodecimal
1868b2a5
16
Hexadecimal
3a8dbdd
20
Vigesimal
j3eej1
36
Base36
10jyzh
md5
7f33c5f9d8cffc693d22c12928680a18
sha1
26abd3a8f86fea80ad7c69cf47021e3c5a340c19
sha256
7f54a58cc51b95e30088907bd77a89ba0614783864e488f4133b95c0a4ba616a
sha512
690947aa15447d0535dc948d9cbe3fc9b43316436b0e501d34bbedcbbf1ac43660b166b6848eacfa1d65de76b4b8cc27b1640627b1a46882fa6e567b7264c966
ripemd-160
7e54d2205c641c19846fcaedcb5c5f64b6d2b6ad
Diameter
122795962
Circumference
385774892.10969
Area
1.1842899748014E+16
Volume
9.6950684495129E+23
Surface area
4.7371598992056E+16
Circumference
385774892.10969
Perimeter
245591924
Area
3769712070876361
Diagonal
86829857.432526
Surface area
22618272425258166
Volume
2.3145271010314E+23
Space diagonal
106344422.57415
Perimeter
184193943
Area
1.6323332091659E+15
Altitude
53172211.287074
Surface area
1.6323332091659E+15
Volume
2.7276963472989E+22
Height
28943285.810842