81702961 is an odd 8-digits composite number following 81702960
and preceding 81702962 . In scientific notation, it is written as 8.1702961 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 81684772 positive integers (up to 81702961) that are relatively prime to 81702961.
81702961 has 4 divisors, whose sum is 81721152
The reverse of 81702961 is 16920718
Previous prime number is 10103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million seven hundred two thousand nine hundred sixty-one
Scientific notation
8.1702961 × 10^7
Engineering notation
8.1702961 × 10^6
Prime Factorization
10103 × 8087
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81702961
Product of the distinct prime numbers
The prime factorization of 81702961 is 10103 × 8087.
Since it has a total of 2 prime factors.
2 , 5 , 38 , 42 , 39 , 337 , 1218 , 1420 , 30355 , 51689 , 740923 , 424405 , 350934 , 8572599 , 77326509 , 16987276 , 484883188 , 923341552 , 5291166720 , 1121345710
n×2
163405922
n×3
245108883
n×4
326811844
n×5
408514805
n÷2
40851480.5
n÷3
27234320.333333
n÷3
20425740.25
n÷5
16340592.2
n2
6675373836167521
n3
5.4539780819682E+23
n4
4.456061585259E+31
n5
3.6407342591401E+39
2 √n
9038.9690230689
3 √n
433.92292833168
4 √n
95.073492746764
5 √n
38.233808379238
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
-81702960
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 81702961 can be divided by 4 positive divisors.
The sum of these divisors (counting 81702961) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111101011000000110001
3
Ternary
12200201221101121
4
Quaternary
10313223000301
5
Quinary
131403443321
6
Senary
12035102241
8
Octal
467530061
10
Decimal
81702961
12
Duodecimal
23441981
16
Hexadecimal
4deb031
20
Vigesimal
15ach81
36
Base36
1cn6ep
md5
7cf1d0e1da92a5a0125329ce28502ab7
sha1
8d45620ef691fe22c3c52f3a092b8b8d40f6812d
sha256
f42840d73e25f4bf1ff24767b63534201d4cdb93457accf6b95a59b3f5d6c4b9
sha512
79c2b4ec513ec91103b382ca243bba994a1cba3e06d32fed227a164291b8b076fdb1584fe7202c0ec40840b20d8eb187a8266e5d608bd4ec58eaab3180ee1aae
ripemd-160
25ee94ece9af43c23962f074b9794e595c0675a6
Diameter
163405922
Circumference
513354844.10827
Area
2.0971305403669E+16
Volume
2.2845569966868E+24
Surface area
8.3885221614678E+16
Circumference
513354844.10827
Perimeter
326811844
Area
6675373836167521
Diagonal
115545435.53224
Surface area
40052243017005126
Volume
5.4539780819682E+23
Space diagonal
141513679.58082
Perimeter
245108883
Area
2.8905216609395E+15
Altitude
70756839.790409
Surface area
2.8905216609395E+15
Volume
6.4275748103375E+22
Height
38515145.177413