81592921 is an odd 8-digits composite number following 81592920
and preceding 81592922 . In scientific notation, it is written as 8.1592921 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 78779344 positive integers (up to 81592921) that are relatively prime to 81592921.
81592921 has 4 divisors, whose sum is 84406500
The reverse of 81592921 is 12929518
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million five hundred ninety-two thousand nine hundred twenty-one
Scientific notation
8.1592921 × 10^7
Engineering notation
8.1592921 × 10^6
Prime Factorization
29 × 2813549
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81592921
Product of the distinct prime numbers
The prime factorization of 81592921 is 29 × 2813549.
Since it has a total of 2 prime factors.
8 , 5 , 82 , 95 , 125 , 753 , 8143 , 8935 , 10744 , 1785 , 106493 , 182745 , 1953372 , 396049 , 46641162 , 84939192 , 944789525 , 569190992 , 3863067812 , 4450767543
n×2
163185842
n×3
244778763
n×4
326371684
n×5
407964605
n÷2
40796460.5
n÷3
27197640.333333
n÷3
20398230.25
n÷5
16318584.2
n2
6657404757312241
n3
5.431971004284E+23
n4
4.4321038102684E+31
n5
3.6162829605503E+39
2 √n
9032.8799947746
3 √n
433.72803400127
4 √n
95.041464607689
5 √n
38.223503938285
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
-81592920
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 81592921 can be divided by 4 positive divisors.
The sum of these divisors (counting 81592921) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111010000001001011001
3
Ternary
12200112100110001
4
Quaternary
10313100021121
5
Quinary
131341433141
6
Senary
12032453001
8
Octal
467201131
10
Decimal
81592921
12
Duodecimal
233aa161
16
Hexadecimal
4dd0259
20
Vigesimal
159j261
36
Base36
1ckti1
md5
eb0806af98cc06ae7ea94a025fc6f11f
sha1
333f1a737ed3452a39393beb9208832d6d028003
sha256
cb09189d9220319872052209c17524619f8ed7657ec6418d56814dd0be02def7
sha512
0f0f3bf835fb3a16cb7a7a9f23e17c04af5286c3619e018953ec5fe26c590a725172f29bcd246a4bc23a63bf8028e1a1cd0adc9794607c67a03954d14360d38e
ripemd-160
51411291b404f60f3745a1b34f113b958f6c2b0f
Diameter
163185842
Circumference
512663442.39706
Area
2.0914853877546E+16
Volume
2.2753386935429E+24
Surface area
8.3659415510184E+16
Circumference
512663442.39706
Perimeter
326371684
Area
6657404757312241
Diagonal
115389815.47184
Surface area
39944428543873446
Volume
5.431971004284E+23
Space diagonal
141323084.70995
Perimeter
244778763
Area
2.8827408215539E+15
Altitude
70661542.354977
Surface area
2.8827408215539E+15
Volume
6.4016392205632E+22
Height
38463271.823946