81292017 is an odd 8-digits composite number following 81292016
and preceding 81292018 . In scientific notation, it is written as 8.1292017 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 52157952 positive integers (up to 81292017) that are relatively prime to 81292017.
81292017 has 16 divisors, whose sum is 112487040
The reverse of 81292017 is 71029218
Previous prime number is 353
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million two hundred ninety-two thousand seventeen
Scientific notation
8.1292017 × 10^7
Engineering notation
8.1292017 × 10^6
Prime Factorization
3 × 29 × 353 × 2647
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81292017
Product of the distinct prime numbers
The prime factorization of 81292017 is 3 × 29 × 353 × 2647.
Since it has a total of 4 prime factors.
5 , 1 , 5 , 43 , 478 , 54 , 5599 , 4419 , 32114 , 7030 , 98562 , 190158 , 4747999 , 9122802 , 16622570 , 45765761 , 115887606 , 993894986 , 9524737070 , 1879708647
n×2
162584034
n×3
243876051
n×4
325168068
n×5
406460085
n÷2
40646008.5
n÷3
27097339
n÷3
20323004.25
n÷5
16258403.4
n2
6608392027928289
n3
5.3720951707701E+23
n4
4.3670845194786E+31
n5
3.5500910899789E+39
2 √n
9016.2085712344
3 √n
433.19419984237
4 √n
94.953718048502
5 √n
38.19526960302
1 , 3 , 29 , 87 , 353 , 1059 , 2647 , 7941 , 10237 , 30711 , 76763 , 230289 , 934391 , 2803173 , 27097339 , 81292017
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81292016
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81292017 can be divided by 16 positive divisors.
The sum of these divisors (counting 81292017) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110000110101011110001
3
Ternary
12122222001200110
4
Quaternary
10312012223301
5
Quinary
131302321032
6
Senary
12022211533
8
Octal
466065361
10
Decimal
81292017
12
Duodecimal
23283ba9
16
Hexadecimal
4d86af1
20
Vigesimal
1581a0h
36
Base36
1cedbl
md5
2d1b4f9e93f925e3e429bf627d5cd691
sha1
353814e1e24ee9aea2dce436a57e2288b20c0ba4
sha256
6cd3d27fdb66cc43b344b47d2940676a5ffb1a5c899c21b65f81512ec6888d89
sha512
7a8656f2985cbec9f72070489c255b0af933932e0442c645d79d74142108fa69d4b2497521e6b4e3841f84a08289a4e48008218605240f1d5e9acc4d4fbf3421
ripemd-160
690301c4c1cd44d9e9c94e97637a71941ae776e8
Diameter
162584034
Circumference
510772806.80539
Area
2.0760875846981E+16
Volume
2.2502579630502E+24
Surface area
8.3043503387923E+16
Circumference
510772806.80539
Perimeter
325168068
Area
6608392027928289
Diagonal
114964272.95406
Surface area
39650352167569734
Volume
5.3720951707701E+23
Space diagonal
140801903.69375
Perimeter
243876051
Area
2.8615176871762E+15
Altitude
70400951.846876
Surface area
2.8615176871762E+15
Volume
6.3310748740517E+22
Height
38321424.318021