61981854 is an even 8-digits composite number following 61981853
and preceding 61981855 . In scientific notation, it is written as 6.1981854 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 18782360 positive integers (up to 61981854) that are relatively prime to 61981854.
61981854 has 16 divisors, whose sum is 135233280
The reverse of 61981854 is 45818916
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
sixty-one million nine hundred eighty-one thousand eight hundred fifty-four
Scientific notation
6.1981854 × 10^7
Engineering notation
6.1981854 × 10^6
Prime Factorization
2 × 3 × 11 × 939119
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
61981854
Product of the distinct prime numbers
The prime factorization of 61981854 is 2 × 3 × 11 × 939119.
Since it has a total of 4 prime factors.
1 , 8 , 98 , 10 , 33 , 900 , 2320 , 2770 , 71128 , 80283 , 971461 , 500519 , 9328730 , 2302035 , 5560057 , 60993237 , 621820118 , 596679546 , 9336378951 , 1509180512
n×2
123963708
n×3
185945562
n×4
247927416
n×5
309909270
n÷2
30990927
n÷3
20660618
n÷3
15495463.5
n÷5
12396370.8
n2
3841750225277316
n3
2.3811880156761E+23
n4
1.4759044793418E+31
n5
9.1479295956511E+38
2 √n
7872.8555175362
3 √n
395.75054435031
4 √n
88.729113133944
5 √n
36.17869626211
1 , 2 , 3 , 6 , 11 , 22 , 33 , 66 , 939119 , 1878238 , 2817357 , 5634714 , 10330309 , 20660618 , 30990927 , 61981854
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-61981853
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 61981854 can be divided by 16 positive divisors.
The sum of these divisors (counting 61981854) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11101100011100010010011110
3
Ternary
11022122000010020
4
Quaternary
3230130102132
5
Quinary
111331404404
6
Senary
10052253010
8
Octal
354342236
10
Decimal
61981854
12
Duodecimal
18911166
16
Hexadecimal
3b1c49e
20
Vigesimal
j77ece
36
Base36
10whi6
md5
533971101e5d0e11d4f7187dadb719da
sha1
b3814c953fea23ef18c2ca8eaa61726e8d6d64bf
sha256
2c00c692322cd7ea898ec026f33b1e742ba930db51a8008a8215ee2df81cbc91
sha512
efd84ea3ea012f2190bff32f3bf6d653ac4e069fedf51f40378c9cd89b3ca10fea69c9c921b36cf53852b2ac8cbad9fcdcf9249b3dc1d93e5f0f7a45b82f9693
ripemd-160
75a8004b2d1acb01c9898655a42a89ed637b4247
Diameter
123963708
Circumference
389443474.36455
Area
1.2069214284658E+16
Volume
9.9742970358186E+23
Surface area
4.8276857138633E+16
Circumference
389443474.36455
Perimeter
247927416
Area
3841750225277316
Diagonal
87655578.547829
Surface area
23050501351663896
Volume
2.3811880156761E+23
Space diagonal
107355720.27532
Perimeter
185945562
Area
1.6635266450424E+15
Altitude
53677860.137658
Surface area
1.6635266450424E+15
Volume
2.8062569886078E+22
Height
29218526.18261