81274877 is an odd 8-digits prime number following 81274876
and preceding 81274878 . In scientific notation, it is written as 8.1274877 × 10^7.
The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors.
There are 81274876 positive integers (up to 81274877) that are relatively prime to 81274877.
81274877 has 2 divisors, whose sum is 81274878
The reverse of 81274877 is 77847218
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 44 Digital Root 8
Name
eighty-one million two hundred seventy-four thousand eight hundred seventy-seven
Scientific notation
8.1274877 × 10^7
Engineering notation
8.1274877 × 10^6
Prime Factorization
81274877
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
81274877 Product of the distinct prime numbers
The prime factorization of 81274877 is 81274877.
Since it has a total of 1 prime factors.
9 , 6 , 99 , 10 , 444 , 767 , 6386 , 8919 , 11206 , 10919 , 22191 , 231982 , 2474772 , 3702364 , 61597333 , 23872654 , 727399331 , 854342328 , 1216817581 , 2658958243
n×2
162549754
n×3
243824631
n×4
325099508
n×5
406374385
n÷2
40637438.5
n÷3
27091625.666667
n÷3
20318719.25
n÷5
16254975.4
n2
6605605631365129
n3
5.3686978519971E+23
n4
4.3634025757123E+31
n5
3.546350076425E+39
2 √n9015.2580107283
3 √n433.16375211922
4 √n94.948712528018
5 √n38.19365881228
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
81274878 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
40637439 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9015.2580661898 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999753921 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81274877 can be divided by 2 positive divisors.
The sum of these divisors (counting 81274877) is 81274878, the average is 40637439.
Base
System
Value
2
Binary
100110110000010011111111101
3
Ternary
12122221012011122
4
Quaternary
10312002133331
5
Quinary
131301244002
6
Senary
12022000325
8
Octal
466023775
10
Decimal
81274877
12
Duodecimal
232760a5
16
Hexadecimal
4d827fd
20
Vigesimal
157j73h
36
Base36
1ce03h
md5
946ea30b25c0446ab3c1b38c3631ff53
sha1
5b43e2b401b0de2a2642d79998b85ac37d0be245
sha256
8fcb3435782f2494e9a2bd084193ad82961bb03f6e8290243d73bbfc37a6188f
sha512
e7da130b2b85627aa46df9e85d8a5d1135b6b2c73a7e7564b65ad231cd1d8459ba249a59d820d5632533f4cd64add6b0a28eed7f5e77704aa4e58b2aed40ad0b
ripemd-160
a33a4a8cc43a52b3e2eb4b2577dc776551bcfe90
Diameter
162549754
Circumference
510665113.00923
Area
2.0752122124008E+16
Volume
2.2488348974903E+24
Surface area
8.3008488496032E+16
Circumference
510665113.00923
Perimeter
325099508
Area
6605605631365129
Diagonal
114940033.33361
Surface area
39633633788190774
Volume
5.3686978519971E+23
Space diagonal
140772216.34291
Perimeter
243824631
Area
2.8603111420719E+15
Altitude
70386108.171456
Surface area
2.8603111420719E+15
Volume
6.3270710954813E+22
Height
38313344.444535