81592021 is an odd 8-digits composite number following 81592020
and preceding 81592022 . In scientific notation, it is written as 8.1592021 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 69875088 positive integers (up to 81592021) that are relatively prime to 81592021.
81592021 has 8 divisors, whose sum is 93329280
The reverse of 81592021 is 12029518
Previous prime number is 1319
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million five hundred ninety-two thousand twenty-one
Scientific notation
8.1592021 × 10^7
Engineering notation
8.1592021 × 10^6
Prime Factorization
7 × 1319 × 8837
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81592021
Product of the distinct prime numbers
The prime factorization of 81592021 is 7 × 1319 × 8837.
Since it has a total of 3 prime factors.
6 , 4 , 44 , 45 , 98 , 85 , 3816 , 4238 , 34874 , 46910 , 162316 , 582363 , 9910032 , 3515438 , 20511208 , 19353434 , 991804620 , 268076818 , 9877372632 , 7450207038
n×2
163184042
n×3
244776063
n×4
326368084
n×5
407960105
n÷2
40796010.5
n÷3
27197340.333333
n÷3
20398005.25
n÷5
16318404.2
n2
6657257890864441
n3
5.4317912563383E+23
n4
4.4319082625477E+31
n5
3.6160835202786E+39
2 √n
9032.830176639
3 √n
433.7264392687
4 √n
95.041202521007
5 √n
38.223419614045
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
-81592020
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 81592021 can be divided by 8 positive divisors.
The sum of these divisors (counting 81592021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111001111111011010101
3
Ternary
12200112022012201
4
Quaternary
10313033323111
5
Quinary
131341421041
6
Senary
12032444501
8
Octal
467177325
10
Decimal
81592021
12
Duodecimal
233a9731
16
Hexadecimal
4dcfed5
20
Vigesimal
159j011
36
Base36
1ckst1
md5
89f5c6540cc0131cc2792717fef9ae2e
sha1
f8c8e81dae0126d8b6268d3d927edee0b3dbe5c6
sha256
a6d9f92262fd01fa2761b2dacd99c046a7c5ba3c1fccd2346b9cfb58c533a2e2
sha512
e63e7b824206305f4510154cbef092f16b785506467174eb3f456e73fddebd256994a3e8c91e7092bb6710de4555b4cb947d93f1c5d6f67e4d65ad3101113f9c
ripemd-160
07b3436330ef48d81c614929d4376eb5b98d6595
Diameter
163184042
Circumference
512657787.53029
Area
2.0914392482992E+16
Volume
2.2752634008994E+24
Surface area
8.365756993197E+16
Circumference
512657787.53029
Perimeter
326368084
Area
6657257890864441
Diagonal
115388542.67963
Surface area
39943547345186646
Volume
5.4317912563383E+23
Space diagonal
141321525.86423
Perimeter
244776063
Area
2.8826772265165E+15
Altitude
70660762.932113
Surface area
2.8826772265165E+15
Volume
6.4014273855776E+22
Height
38462847.559877