81248049 is an odd 8-digits composite number following 81248048
and preceding 81248050 . In scientific notation, it is written as 8.1248049 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 50978880 positive integers (up to 81248049) that are relatively prime to 81248049.
81248049 has 16 divisors, whose sum is 127448640
The reverse of 81248049 is 94084218
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
eighty-one million two hundred forty-eight thousand forty-nine
Scientific notation
8.1248049 × 10^7
Engineering notation
8.1248049 × 10^6
Prime Factorization
9 × 3 × 17 × 177011
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81248049
Product of the distinct prime numbers
The prime factorization of 81248049 is 9 × 3 × 17 × 177011.
Since it has a total of 4 prime factors.
4 , 4 , 48 , 12 , 561 , 990 , 308 , 7929 , 28526 , 49313 , 644174 , 958843 , 7092251 , 7345228 , 89779122 , 33490731 , 388898833 , 328434803 , 6063944734 , 9998570284
n×2
162496098
n×3
243744147
n×4
324992196
n×5
406240245
n÷2
40624024.5
n÷3
27082683
n÷3
20312012.25
n÷5
16249609.8
n2
6601245466306401
n3
5.3633831510749E+23
n4
4.3576441706431E+31
n5
3.5405008710097E+39
2 √n
9013.769966002
3 √n
433.11608590938
4 √n
94.940876159861
5 √n
38.191137012592
1 , 3 , 9 , 17 , 27 , 51 , 153 , 459 , 177011 , 531033 , 1593099 , 3009187 , 4779297 , 9027561 , 27082683 , 81248049
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
-81248048
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 81248049 can be divided by 16 positive divisors.
The sum of these divisors (counting 81248049) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101111011111100110001
3
Ternary
12122212211101000
4
Quaternary
10311323330301
5
Quinary
131244414144
6
Senary
12021232213
8
Octal
465737461
10
Decimal
81248049
12
Duodecimal
23262669
16
Hexadecimal
4d7bf31
20
Vigesimal
157g029
36
Base36
1cdfe9
md5
a9a8cb2d5dd3d61160060ae811b6e0f2
sha1
3f3ef1aca76e8a6a8a712f2f7bb9766774551041
sha256
5b8e439c95b873a3a4d8fd25f0c74e1ded95d1ac31fc31890e7d941b255a15ee
sha512
b6f3823dbaad2c2924178b087306606995eb7cdaacd53cb33036d9ecfb002209bf514b1607e21d4fad706cdd591d9009c255348cbdb9292dc8036e5b20f777d0
ripemd-160
4b6f95eeac6dd7b1f02f10695fa6a384421f4f7a
Diameter
162496098
Circumference
510496547.71381
Area
2.0738424261491E+16
Volume
2.2466086807739E+24
Surface area
8.2953697045964E+16
Circumference
510496547.71381
Perimeter
324992196
Area
6601245466306401
Diagonal
114902092.81215
Surface area
39607472797838406
Volume
5.3633831510749E+23
Space diagonal
140725748.88385
Perimeter
243744147
Area
2.8584231352191E+15
Altitude
70362874.441923
Surface area
2.8584231352191E+15
Volume
6.3208076603779E+22
Height
38300697.604051