61991489 is an odd 8-digits composite number following 61991488
and preceding 61991490 . In scientific notation, it is written as 6.1991489 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 53135556 positive integers (up to 61991489) that are relatively prime to 61991489.
61991489 has 4 divisors, whose sum is 70847424
The reverse of 61991489 is 98419916
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-one million nine hundred ninety-one thousand four hundred eighty-nine
Scientific notation
6.1991489 × 10^7
Engineering notation
6.1991489 × 10^6
Prime Factorization
7 × 8855927
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
61991489
Product of the distinct prime numbers
The prime factorization of 61991489 is 7 × 8855927.
Since it has a total of 2 prime factors.
2 , 3 , 64 , 18 , 898 , 112 , 2925 , 297 , 55825 , 24366 , 409568 , 66357 , 2672834 , 4559765 , 51789555 , 75734764 , 977869637 , 962042456 , 2933828708 , 3916235958
n×2
123982978
n×3
185974467
n×4
247965956
n×5
309957445
n÷2
30995744.5
n÷3
20663829.666667
n÷3
15497872.25
n÷5
12398297.8
n2
3842944708437121
n3
2.3822986462069E+23
n4
1.4768224032105E+31
n5
9.1550419763576E+38
2 √n
7873.4674064227
3 √n
395.77104959331
4 √n
88.732561139768
5 √n
36.179820978598
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
-61991488
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 61991489 can be divided by 4 positive divisors.
The sum of these divisors (counting 61991489) is 1, the average is 0.25.
Base
System
Value
2
Binary
11101100011110101001000001
3
Ternary
11022122111100002
4
Quaternary
3230132221001
5
Quinary
111332211424
6
Senary
10052405345
8
Octal
354365101
10
Decimal
61991489
12
Duodecimal
18916855
16
Hexadecimal
3b1ea41
20
Vigesimal
j78ie9
36
Base36
10woxt
md5
e91b848aeeee0f1346882a55c15122bd
sha1
10ab64d44fbf16412e7cb3ee381b60dd29a12b7b
sha256
f2f31010b0a88e175fa3e6896b0494274a891aeacb929e607c927cae9bbe21ad
sha512
16a2a7a1058bd6fede683905fb2ba252575973a1aafc01faea700fccc14e0ae486e05c009a1fd4c5f17a412e015f877f0ef3fa255ef7c3c22689f9adeebd162a
ripemd-160
04659ea2c3349a8d04aec939ac5e82ab400b52ef
Diameter
123982978
Circumference
389504012.85498
Area
1.2072966864178E+16
Volume
9.9789492341073E+23
Surface area
4.8291867456711E+16
Circumference
389504012.85498
Perimeter
247965956
Area
3842944708437121
Diagonal
87669204.495503
Surface area
23057668250622726
Volume
2.3822986462069E+23
Space diagonal
107372408.58485
Perimeter
185974467
Area
1.6640438714228E+15
Altitude
53686204.292424
Surface area
1.6640438714228E+15
Volume
2.8075658792407E+22
Height
29223068.165168