81223907 is an odd 8-digits prime number following 81223906
and preceding 81223908 . In scientific notation, it is written as 8.1223907 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 81223906 positive integers (up to 81223907) that are relatively prime to 81223907.
81223907 has 2 divisors, whose sum is 81223908
The reverse of 81223907 is 70932218
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million two hundred twenty-three thousand nine hundred seven
Scientific notation
8.1223907 × 10^7
Engineering notation
8.1223907 × 10^6
Prime Factorization
81223907
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81223907
Product of the distinct prime numbers
The prime factorization of 81223907 is 81223907.
Since it has a total of 1 prime factors.
1 , 6 , 74 , 78 , 432 , 471 , 3784 , 2700 , 98662 , 94879 , 227637 , 895695 , 1559212 , 6215728 , 95444057 , 63429258 , 339967644 , 453815325 , 6301869140 , 9833374914
n×2
162447814
n×3
243671721
n×4
324895628
n×5
406119535
n÷2
40611953.5
n÷3
27074635.666667
n÷3
20305976.75
n÷5
16244781.4
n2
6597323068344649
n3
5.3586035535218E+23
n4
4.3524671668112E+31
n5
3.5352438837763E+39
2 √n
9012.4306932148
3 √n
433.07318303559
4 √n
94.933822704107
5 √n
38.188867124153
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81223908
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40611954
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9012.4307486937
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753767
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81223907 can be divided by 2 positive divisors.
The sum of these divisors (counting 81223907) is 81223908, the average is 40611954.
Base
System
Value
2
Binary
100110101110110000011100011
3
Ternary
12122211121020212
4
Quaternary
10311312003203
5
Quinary
131243131112
6
Senary
12020524335
8
Octal
465660343
10
Decimal
81223907
12
Duodecimal
232506ab
16
Hexadecimal
4d760e3
20
Vigesimal
157cjf7
36
Base36
1ccwrn
md5
c1c373ed54b78f1bea37497085e9e911
sha1
fd0af07da3eb310d4fa8e11b7801b85029d480b2
sha256
6ce5f4dc783efb1e5711f9b8f49d6d76aee1194fe853fb04cadb47381b299aad
sha512
1a84b900557f3c680a2373e35fbc4614f941963f6760c22fb9494e38471cc8b1e6ec3d8a513878ef5d7d6ade3c3ee550d78b0081a89bfffee01d7ca605aeeb7f
ripemd-160
2a0c9b67c9b825104365eb3afe63352707748eca
Diameter
162447814
Circumference
510344859.05412
Area
2.072610168487E+16
Volume
2.2446066076326E+24
Surface area
8.290440673948E+16
Circumference
510344859.05412
Perimeter
324895628
Area
6597323068344649
Diagonal
114867950.86833
Surface area
39583938410067894
Volume
5.3586035535218E+23
Space diagonal
140683933.71325
Perimeter
243671721
Area
2.8567246870798E+15
Altitude
70341966.856625
Surface area
2.8567246870798E+15
Volume
6.3151748506427E+22
Height
38289316.95611