81796250 is an even 8-digits composite number following 81796249
and preceding 81796251 . In scientific notation, it is written as 8.1796250 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 32718000 positive integers (up to 81796250) that are relatively prime to 81796250.
81796250 has 16 divisors, whose sum is 148413384
The reverse of 81796250 is 05269718
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million seven hundred ninety-six thousand two hundred fifty
Scientific notation
8.1796250 × 10^7
Engineering notation
8.1796250 × 10^6
Prime Factorization
2 × 125 × 5 × 65437
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81796250
Product of the distinct prime numbers
The prime factorization of 81796250 is 2 × 125 × 5 × 65437.
Since it has a total of 4 prime factors.
3 , 4 , 49 , 77 , 950 , 633 , 5266 , 7614 , 65171 , 86154 , 616360 , 89064 , 6613958 , 6687771 , 49241297 , 94398954 , 606412657 , 563901272 , 7619841780 , 7223899930
n×2
163592500
n×3
245388750
n×4
327185000
n×5
408981250
n÷2
40898125
n÷3
27265416.666667
n÷3
20449062.5
n÷5
16359250
n2
6690626514062500
n3
5.4726815900088E+23
n4
4.4764483150676E+31
n5
3.6615668549135E+39
2 √n
9044.1279292146
3 √n
434.08801757063
4 √n
95.100620025395
5 √n
38.242535519076
1 , 2 , 5 , 10 , 125 , 250 , 625 , 1250 , 65437 , 130874 , 327185 , 654370 , 8179625 , 16359250 , 40898125 , 81796250
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
-81796249
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 81796250 can be divided by 16 positive divisors.
The sum of these divisors (counting 81796250) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111000000001110010011010
3
Ternary
12200220200100202
4
Quaternary
10320001302122
5
Quinary
131414440000
6
Senary
12041102202
8
Octal
470016232
10
Decimal
81796250
12
Duodecimal
23487962
16
Hexadecimal
4e01c9a
20
Vigesimal
15b4aca
36
Base36
1cp6e2
md5
143e321bb5490acf1bbaedb5b66eb2d4
sha1
099f8b4cf8ed1a3492fbddd48855d7e9f0f909a3
sha256
a491eebd7cf289cf11bda70d3b0c4ad220eb9e4f8edec12621a15186624011aa
sha512
21cef381ff63434152c4be69c73610cb0ffee529188e9a806fafe341431d770333e276245388793686efbd01c93b69b41bbe3d41a605f3e23c4fb005bb1f3a60
ripemd-160
2b1d12daba6db8ae2fe30aa37bcaef819657daf9
Diameter
163592500
Circumference
513940996.18239
Area
2.1019223104492E+16
Volume
2.2923915038144E+24
Surface area
8.4076892417967E+16
Circumference
513940996.18239
Perimeter
327185000
Area
6690626514062500
Diagonal
115677366.10126
Surface area
40143759084375000
Volume
5.4726815900088E+23
Space diagonal
141675260.86861
Perimeter
245388750
Area
2.8971262642059E+15
Altitude
70837630.434303
Surface area
2.8971262642059E+15
Volume
6.4496171059501E+22
Height
38559122.033753