81877071 is an odd 8-digits composite number following 81877070
and preceding 81877072 . In scientific notation, it is written as 8.1877071 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 54584712 positive integers (up to 81877071) that are relatively prime to 81877071.
81877071 has 4 divisors, whose sum is 109169432
The reverse of 81877071 is 17077818
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million eight hundred seventy-seven thousand seventy-one
Scientific notation
8.1877071 × 10^7
Engineering notation
8.1877071 × 10^6
Prime Factorization
3 × 27292357
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81877071
Product of the distinct prime numbers
The prime factorization of 81877071 is 3 × 27292357.
Since it has a total of 2 prime factors.
4 , 2 , 38 , 28 , 179 , 796 , 5307 , 6238 , 35405 , 59158 , 952614 , 975645 , 6523033 , 3879496 , 55729005 , 65498757 , 659154530 , 96374411 , 2981423423 , 4098768552
n×2
163754142
n×3
245631213
n×4
327508284
n×5
409385355
n÷2
40938535.5
n÷3
27292357
n÷3
20469267.75
n÷5
16375414.2
n2
6703854755539041
n3
5.4889199179296E+23
n4
4.4941668583363E+31
n5
3.6796921894585E+39
2 √n
9048.5949738067
3 √n
434.23094131495
4 √n
95.124103011838
5 √n
38.250089848541
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81877070
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81877071 can be divided by 4 positive divisors.
The sum of these divisors (counting 81877071) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000010101100001001111
3
Ternary
12201001210020010
4
Quaternary
10320111201033
5
Quinary
131430031241
6
Senary
12042524303
8
Octal
470254117
10
Decimal
81877071
12
Duodecimal
23506693
16
Hexadecimal
4e1584f
20
Vigesimal
15becdb
36
Base36
1cqwr3
md5
19726c5ea3cd32a651cbcbedbd0f035d
sha1
e01832a0ed37361456cff2df00c19587bce3497a
sha256
f6c65efe4be29c7cbc65ea97a532419c2d3c6a73e66fe9806eda531a6aeb87eb
sha512
352c2708b0467cb0e92df73ffee6afc16e41445d2bedbc4e72fed94a161165ef16983467cb6217c537b97eb5f8176e20bba7921076f5fe76543f7113126bacc9
ripemd-160
0f63b139ec3405afb790960d99e127f9dda98871
Diameter
163754142
Circumference
514448809.5021
Area
2.1060780850734E+16
Volume
2.299193398708E+24
Surface area
8.4243123402938E+16
Circumference
514448809.5021
Perimeter
327508284
Area
6703854755539041
Diagonal
115791664.25558
Surface area
40223128533234246
Volume
5.4889199179296E+23
Space diagonal
141815246.94692
Perimeter
245631213
Area
2.902854260789E+15
Altitude
70907623.473462
Surface area
2.902854260789E+15
Volume
6.4687541589299E+22
Height
38597221.418528