38991681 is an odd 8-digits composite number following 38991680
and preceding 38991682 . In scientific notation, it is written as 3.8991681 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 6 positive divisors.
There are 25994448 positive integers (up to 38991681) that are relatively prime to 38991681.
38991681 has 6 divisors, whose sum is 56321330
The reverse of 38991681 is 18619983
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
thirty-eight million nine hundred ninety-one thousand six hundred eighty-one
Scientific notation
3.8991681 × 10^7
Engineering notation
3.8991681 × 10^6
Prime Factorization
3 × 3 × 4332409
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12997227
Product of the distinct prime numbers
The prime factorization of 38991681 is 3 × 3 × 4332409.
Since it has a total of 3 prime factors.
10 , 4 , 38 , 56 , 599 , 275 , 6834 , 8017 , 5209 , 39468 , 66536 , 481422 , 1620614 , 8835632 , 6419569 , 34327154 , 782627503 , 102674325 , 828839180 , 6215910576
n×2
77983362
n×3
116975043
n×4
155966724
n×5
194958405
n÷2
19495840.5
n÷3
12997227
n÷3
9747920.25
n÷5
7798336.2
n2
1520351187205761
n3
5.9281048499498E+22
n4
2.311467732438E+30
n5
9.0128012465015E+37
2 √n
6244.3319098203
3 √n
339.09703020386
4 √n
79.021085222998
5 √n
32.975727968299
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-38991680
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 38991681 can be divided by 6 positive divisors.
The sum of these divisors (counting 38991681) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
10010100101111011101000001
3
Ternary
2201100222112100
4
Quaternary
2110233131001
5
Quinary
34440213211
6
Senary
3511421013
8
Octal
224573501
10
Decimal
38991681
12
Duodecimal
11084769
16
Hexadecimal
252f741
20
Vigesimal
c3dj41
36
Base36
n7q69
md5
eba4ba9f5051638a854dd2b141edab24
sha1
87591c8c18a36881296e2c590a3021a1b9274d8d
sha256
cd438114cba02203f1fb9e08215da3f04850cab2ae3c3b8465f62ffd74816c91
sha512
6862b93d21b8aa815b5670c7e31e59fafa1dddcca07fec25007f97e719ab947bb4d661efbba787957d148c5bf7aebb963f46cc1569f48a8bb1fd0fdfa893d77e
ripemd-160
1ba28787a78bbfa528ff7112e8d4f5465ca06deb
Diameter
77983362
Circumference
244991957.16143
Area
4.7763241206021E+15
Volume
2.4831587528417E+23
Surface area
1.9105296482409E+16
Circumference
244991957.16143
Perimeter
155966724
Area
1520351187205761
Diagonal
55142564.089925
Surface area
9122107123234566
Volume
5.9281048499498E+22
Space diagonal
67535572.564518
Perimeter
116975043
Area
6.5833137539701E+14
Altitude
33767786.282259
Surface area
6.5833137539701E+14
Volume
6.986338564974E+21
Height
18380854.696642