87081855 is an odd 8-digits composite number following 87081854
and preceding 87081856 . In scientific notation, it is written as 8.7081855 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 39244800 positive integers (up to 87081855) that are relatively prime to 87081855.
87081855 has 16 divisors, whose sum is 107661312
The reverse of 87081855 is 55818078
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-seven million eighty-one thousand eight hundred fifty-five
Scientific notation
8.7081855 × 10^7
Engineering notation
8.7081855 × 10^6
Prime Factorization
7 × 15 × 71 × 11681
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
87081855
Product of the distinct prime numbers
The prime factorization of 87081855 is 7 × 15 × 71 × 11681.
Since it has a total of 4 prime factors.
2 , 4 , 93 , 68 , 565 , 231 , 7935 , 8490 , 67768 , 43210 , 238563 , 756377 , 2427207 , 2571549 , 7805517 , 15483433 , 277983385 , 300934258 , 1997836706 , 5149492722
n×2
174163710
n×3
261245565
n×4
348327420
n×5
435409275
n÷2
43540927.5
n÷3
29027285
n÷3
21770463.75
n÷5
17416371
n2
7583249470241025
n3
6.6036343079636E+23
n4
5.7505672527911E+31
n5
5.007700636753E+39
2 √n
9331.7659100515
3 √n
443.24368543036
4 √n
96.601065781137
5 √n
38.724474620249
1 , 7 , 15 , 71 , 105 , 497 , 1065 , 7455 , 11681 , 81767 , 175215 , 829351 , 1226505 , 5805457 , 12440265 , 87081855
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
-87081854
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 87081855 can be divided by 16 positive divisors.
The sum of these divisors (counting 87081855) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101001100001100001101111111
3
Ternary
20001212012211220
4
Quaternary
11030030031333
5
Quinary
134243104410
6
Senary
12350244423
8
Octal
514141577
10
Decimal
87081855
12
Duodecimal
251b6713
16
Hexadecimal
530c37f
20
Vigesimal
17454cf
36
Base36
1fugsf
md5
b66c0789d54b257ca6a2ebc20ffa42c4
sha1
da5802178d73cf5c1075f0e4fc56314629f8b15f
sha256
e43f07e46dc1661b69c0cd81d0def1f52f7198871da7bf6ca8f4a54dd36636bd
sha512
15db21b05e328436cf1edf4f012ae02b75a30787b385ad0ee643e88bea9bc56f405486311832108ad1cb75c0ccdcec34a88be619486f60f63908e5dddb146a20
ripemd-160
e303d35dc8f3c2f89260d7e576947d7c0c515c35
Diameter
174163710
Circumference
547151431.85794
Area
2.3823480826048E+16
Volume
2.7661238705189E+24
Surface area
9.5293923304192E+16
Circumference
547151431.85794
Perimeter
348327420
Area
7583249470241025
Diagonal
123152340.37761
Surface area
45499496821446150
Volume
6.6036343079636E+23
Space diagonal
150830197.27735
Perimeter
261245565
Area
3.2836433422318E+15
Altitude
75415098.638673
Surface area
3.2836433422318E+15
Volume
7.7824576660619E+22
Height
41050780.125869