87431071 is an odd 8-digits composite number following 87431070
and preceding 87431072 . In scientific notation, it is written as 8.7431071 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 68661504 positive integers (up to 87431071) that are relatively prime to 87431071.
87431071 has 16 divisors, whose sum is 108408384
The reverse of 87431071 is 17013478
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-seven million four hundred thirty-one thousand seventy-one
Scientific notation
8.7431071 × 10^7
Engineering notation
8.7431071 × 10^6
Prime Factorization
7 × 13 × 137 × 7013
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
87431071
Product of the distinct prime numbers
The prime factorization of 87431071 is 7 × 13 × 137 × 7013.
Since it has a total of 4 prime factors.
10 , 9 , 5 , 75 , 128 , 394 , 572 , 5040 , 42122 , 57100 , 750761 , 958322 , 4159073 , 2890291 , 14722091 , 68046327 , 919784129 , 458160446 , 6378184657 , 205850921
n×2
174862142
n×3
262293213
n×4
349724284
n×5
437155355
n÷2
43715535.5
n÷3
29143690.333333
n÷3
21857767.75
n÷5
17486214.2
n2
7644192176207041
n3
6.683399088956E+23
n4
5.8433674026785E+31
n5
5.1089187026267E+39
2 √n
9350.4583310124
3 √n
443.83539437056
4 √n
96.69776797327
5 √n
38.755483527561
1 , 7 , 13 , 91 , 137 , 959 , 1781 , 7013 , 12467 , 49091 , 91169 , 638183 , 960781 , 6725467 , 12490153 , 87431071
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
-87431070
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 87431071 can be divided by 16 positive divisors.
The sum of these divisors (counting 87431071) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101001101100001011110011111
3
Ternary
20002111221212211
4
Quaternary
11031201132133
5
Quinary
134340243241
6
Senary
12401541251
8
Octal
515413637
10
Decimal
87431071
12
Duodecimal
25344827
16
Hexadecimal
536179f
20
Vigesimal
1768hdb
36
Base36
1g1y8v
md5
32f73916a15cfdba9d782e6a132ccbc0
sha1
2cb0896dd4c5c94f6b118920481db63ac464368c
sha256
132d00d12dafcaa3b6862bec13565a52b5899a957003401f3cf15ee67f37517f
sha512
079b19ef363afdcd7108853cb57ab337c49f307711700d16cfda368463bf1d4ddc3c8509b69b180b8b8341183020510ea341f600d239d450edef49110a97a5d8
ripemd-160
ea16493f8decda936b4b93c4b043d885fe7035e4
Diameter
174862142
Circumference
549345620.69818
Area
2.4014937983401E+16
Volume
2.7995356638497E+24
Surface area
9.6059751933602E+16
Circumference
549345620.69818
Perimeter
349724284
Area
7644192176207041
Diagonal
123646206.38101
Surface area
45865153057242246
Volume
6.683399088956E+23
Space diagonal
151435057.13216
Perimeter
262293213
Area
3.3100323080028E+15
Altitude
75717528.566081
Surface area
3.3100323080028E+15
Volume
7.8764613619613E+22
Height
41215402.127002