81502486 is an even 8-digits composite number following 81502485
and preceding 81502487 . In scientific notation, it is written as 8.1502486 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 37445184 positive integers (up to 81502486) that are relatively prime to 81502486.
81502486 has 16 divisors, whose sum is 132257664
The reverse of 81502486 is 68420518
Previous prime number is 223
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million five hundred two thousand four hundred eighty-six
Scientific notation
8.1502486 × 10^7
Engineering notation
8.1502486 × 10^6
Prime Factorization
2 × 13 × 223 × 14057
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81502486
Product of the distinct prime numbers
The prime factorization of 81502486 is 2 × 13 × 223 × 14057.
Since it has a total of 4 prime factors.
10 , 3 , 78 , 58 , 946 , 904 , 3389 , 1711 , 49238 , 3301 , 292489 , 155659 , 3764669 , 5694046 , 20370365 , 26047710 , 732462446 , 411909061 , 5002399420 , 4264468875
n×2
163004972
n×3
244507458
n×4
326009944
n×5
407512430
n÷2
40751243
n÷3
27167495.333333
n÷3
20375621.5
n÷5
16300497.2
n2
6642655224180196
n3
5.4139291441157E+23
n4
4.4124868427328E+31
n5
3.5962864712502E+39
2 √n
9027.8727283896
3 √n
433.56773130662
4 √n
95.015118420121
5 √n
38.215027035893
1 , 2 , 13 , 26 , 223 , 446 , 2899 , 5798 , 14057 , 28114 , 182741 , 365482 , 3134711 , 6269422 , 40751243 , 81502486
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
-81502485
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 81502486 can be divided by 16 positive divisors.
The sum of these divisors (counting 81502486) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110111010000100010110
3
Ternary
12200100202101121
4
Quaternary
10312322010112
5
Quinary
131331034421
6
Senary
12030514154
8
Octal
466720426
10
Decimal
81502486
12
Duodecimal
2336595a
16
Hexadecimal
4dba116
20
Vigesimal
1597g46
36
Base36
1civpy
md5
4d5ec804b91abe78cd7160a19813de78
sha1
146691bef95e28283dc5d19674e23564c6b9153d
sha256
ed1c5892fb76dd8ddd75363f595b6371ceb33471ec452c5f85f36070a193e780
sha512
a88805399f770ff1c001f34f18b25f00bc40602df2b1f0f30a1850a733526440106558bdb29e60451e6e8e6f6595e90f7bac4b755fc6930d77de59630fd9663a
ripemd-160
5540678e73ccdd653af0fb4d33ecdb63ef5e038e
Diameter
163004972
Circumference
512095222.53381
Area
2.0868516852614E+16
Volume
2.267781336828E+24
Surface area
8.3474067410457E+16
Circumference
512095222.53381
Perimeter
326009944
Area
6642655224180196
Diagonal
115261921.06832
Surface area
39855931345081176
Volume
5.4139291441157E+23
Space diagonal
141166446.69517
Perimeter
244507458
Area
2.8763540863607E+15
Altitude
70583223.347586
Surface area
2.8763540863607E+15
Volume
6.3803766844462E+22
Height
38420640.356108