81572354 is an even 8-digits composite number following 81572353
and preceding 81572355 . In scientific notation, it is written as 8.1572354 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 39598272 positive integers (up to 81572354) that are relatively prime to 81572354.
81572354 has 16 divisors, whose sum is 125964288
The reverse of 81572354 is 45327518
Previous prime number is 127
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million five hundred seventy-two thousand three hundred fifty-four
Scientific notation
8.1572354 × 10^7
Engineering notation
8.1572354 × 10^6
Prime Factorization
2 × 47 × 127 × 6833
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81572354
Product of the distinct prime numbers
The prime factorization of 81572354 is 2 × 47 × 127 × 6833.
Since it has a total of 4 prime factors.
8 , 9 , 40 , 3 , 625 , 16 , 7041 , 4723 , 1852 , 37921 , 331277 , 908413 , 9587082 , 1097981 , 44975630 , 9945960 , 491142031 , 33602370 , 1530762238 , 9928222661
n×2
163144708
n×3
244717062
n×4
326289416
n×5
407861770
n÷2
40786177
n÷3
27190784.666667
n÷3
20393088.5
n÷5
16314470.8
n2
6654048937101316
n3
5.4278643543055E+23
n4
4.4276367257339E+31
n5
3.6117275037497E+39
2 √n
9031.7414710564
3 √n
433.69158788971
4 √n
95.03547480313
5 √n
38.22157675619
1 , 2 , 47 , 94 , 127 , 254 , 5969 , 6833 , 11938 , 13666 , 321151 , 642302 , 867791 , 1735582 , 40786177 , 81572354
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
-81572353
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 81572354 can be divided by 16 positive divisors.
The sum of these divisors (counting 81572354) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111001011001000000010
3
Ternary
12200111022020022
4
Quaternary
10313023020002
5
Quinary
131340303404
6
Senary
12032213442
8
Octal
467131002
10
Decimal
81572354
12
Duodecimal
2339a282
16
Hexadecimal
4dcb202
20
Vigesimal
159gahe
36
Base36
1ckdmq
md5
9aaa70f5fa3f3551c61f30ab38f67c19
sha1
640c5a64b82dcd3783b986a72c67c40eb62fbde7
sha256
6fd49268f2214de1a3a0a261d2aafaf6693c63e5c586e40e772d271816412bf8
sha512
cd033201a3ed7f1799ef589435acb68855ce97e83985c74b6a877dbf50d62145bb546a914a57b1477427df142111181f8e61585d1227d47152ff7ea478955ef1
ripemd-160
b3d51792cd35e74c2e53f014021012b8b2193dea
Diameter
163144708
Circumference
512534216.12485
Area
2.0904311257424E+16
Volume
2.2736185040224E+24
Surface area
8.3617245029698E+16
Circumference
512534216.12485
Perimeter
326289416
Area
6654048937101316
Diagonal
115360729.3415
Surface area
39924293622607896
Volume
5.4278643543055E+23
Space diagonal
141287461.62099
Perimeter
244717062
Area
2.8812877087773E+15
Altitude
70643730.810497
Surface area
2.8812877087773E+15
Volume
6.3967994871503E+22
Height
38453576.447166