81330357 is an odd 8-digits composite number following 81330356
and preceding 81330358 . In scientific notation, it is written as 8.1330357 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 54194240 positive integers (up to 81330357) that are relatively prime to 81330357.
81330357 has 8 divisors, whose sum is 108492480
The reverse of 81330357 is 75303318
Previous prime number is 2609
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million three hundred thirty thousand three hundred fifty-seven
Scientific notation
8.1330357 × 10^7
Engineering notation
8.1330357 × 10^6
Prime Factorization
3 × 2609 × 10391
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81330357
Product of the distinct prime numbers
The prime factorization of 81330357 is 3 × 2609 × 10391.
Since it has a total of 3 prime factors.
2 , 4 , 4 , 18 , 61 , 395 , 4903 , 3459 , 32961 , 99167 , 289587 , 73753 , 2007571 , 81088 , 5802613 , 50872884 , 865241096 , 479867672 , 7758524583 , 6001326471
n×2
162660714
n×3
243991071
n×4
325321428
n×5
406651785
n÷2
40665178.5
n÷3
27110119
n÷3
20332589.25
n÷5
16266071.4
n2
6614626969747449
n3
5.3796997287139E+23
n4
4.375328994891E+31
n5
3.5584706914694E+39
2 √n
9018.3344914679
3 √n
433.26229203581
4 √n
94.964911896278
5 √n
38.198871753646
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81330356
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81330357 can be divided by 8 positive divisors.
The sum of these divisors (counting 81330357) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010000000010110101
3
Ternary
12200001000021110
4
Quaternary
10312100002311
5
Quinary
131310032412
6
Senary
12023105233
8
Octal
466200265
10
Decimal
81330357
12
Duodecimal
232a2219
16
Hexadecimal
4d900b5
20
Vigesimal
15865hh
36
Base36
1cf6wl
md5
46bf149fc79d4a4fb567bd19abf6557f
sha1
45f662213d1a8aa5907ffc850bb1f2965ee43054
sha256
b699c634b4eb01426d1bfa05655b03c4f3ee18598671761a5125706735f3b979
sha512
a69e7b09b6d2d00aa6a240853eefa6c7757630d501345f85e578e502925af3d4602ac9d6f4cb657aae095d99dcf90855eb14fbff6742b64dedd0e92f754dd626
ripemd-160
ee62a2c994ae7ffc41711c24db01c03b43be28c4
Diameter
162660714
Circumference
511013704.13007
Area
2.0780463494396E+16
Volume
2.2534433528329E+24
Surface area
8.3121853977582E+16
Circumference
511013704.13007
Perimeter
325321428
Area
6614626969747449
Diagonal
115018493.90205
Surface area
39687761818484694
Volume
5.3796997287139E+23
Space diagonal
140868310.52172
Perimeter
243991071
Area
2.8642174961795E+15
Altitude
70434155.260858
Surface area
2.8642174961795E+15
Volume
6.340036931535E+22
Height
38339497.967349