81125959 is an odd 8-digits prime number following 81125958
and preceding 81125960 . In scientific notation, it is written as 8.1125959 × 10^7.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 81125958 positive integers (up to 81125959) that are relatively prime to 81125959.
81125959 has 2 divisors, whose sum is 81125960
The reverse of 81125959 is 95952118
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 40 Digital Root 4
Name
eighty-one million one hundred twenty-five thousand nine hundred fifty-nine
Scientific notation
8.1125959 × 10^7
Engineering notation
8.1125959 × 10^6
Prime Factorization
81125959
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
81125959 Product of the distinct prime numbers
The prime factorization of 81125959 is 81125959.
Since it has a total of 1 prime factors.
8 , 1 , 96 , 57 , 61 , 554 , 4436 , 2104 , 23044 , 14190 , 540236 , 947004 , 2937505 , 9499776 , 36304337 , 38403925 , 635691685 , 457854264 , 1176136684 , 9929872990
n×2
162251918
n×3
243377877
n×4
324503836
n×5
405629795
n÷2
40562979.5
n÷3
27041986.333333
n÷3
20281489.75
n÷5
16225191.8
n2
6581421223669681
n3
5.3392410835316E+23
n4
4.331510532337E+31
n5
3.5139794585444E+39
2 √n9006.9950038845
3 √n432.89903186905
4 √n94.905189551913
5 √n38.179652278716
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
81125960 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
40562980 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9006.9950593969 Returns the nth root of the product of n divisors
H Harmonic Mean
1.999999975347 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81125959 can be divided by 2 positive divisors.
The sum of these divisors (counting 81125959) is 81125960, the average is 40562980.
Base
System
Value
2
Binary
100110101011110001001000111
3
Ternary
12122122121220011
4
Quaternary
10311132021013
5
Quinary
131232012314
6
Senary
12014451051
8
Octal
465361107
10
Decimal
81125959
12
Duodecimal
23203a87
16
Hexadecimal
4d5e247
20
Vigesimal
1570ehj
36
Base36
1cat6v
md5
76f70b2e3dcc8ac461f5c3e598a872b2
sha1
0840b131b7eebaf1ac71a828c0d231ef6dc1c25c
sha256
fa3ebc7f8bfebbecc97433d9fbd87548ffd60c1fb088fedf14fe9e0324c3b853
sha512
daea64bd77c3f65bad44f285b392c6efdf008494702fa65ef8089e19cc8009e34b9afc0180cadcd8a8675960195faec5deec02e274952a48128934eac802146b
ripemd-160
74fb8a11ac53020165cedf48166824871bcac4b6
Diameter
162251918
Circumference
509729433.61965
Area
2.0676144566461E+16
Volume
2.236496075169E+24
Surface area
8.2704578265842E+16
Circumference
509729433.61965
Perimeter
324503836
Area
6581421223669681
Diagonal
114729431.47832
Surface area
39488527342018086
Volume
5.3392410835316E+23
Space diagonal
140514282.80075
Perimeter
243377877
Area
2.849838986352E+15
Altitude
70257141.400375
Surface area
2.849838986352E+15
Volume
6.292355960925E+22
Height
38243143.826108