87972015 is an odd 8-digits composite number following 87972014
and preceding 87972016 . In scientific notation, it is written as 8.7972015 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 45919776 positive integers (up to 87972015) that are relatively prime to 87972015.
87972015 has 16 divisors, whose sum is 143751168
The reverse of 87972015 is 51027978
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-seven million nine hundred seventy-two thousand fifteen
Scientific notation
8.7972015 × 10^7
Engineering notation
8.7972015 × 10^6
Prime Factorization
5 × 3 × 47 × 124783
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
87972015
Product of the distinct prime numbers
The prime factorization of 87972015 is 5 × 3 × 47 × 124783.
Since it has a total of 4 prime factors.
5 , 2 , 100 , 74 , 877 , 272 , 2159 , 2389 , 23662 , 37872 , 726646 , 753295 , 3228104 , 8238746 , 36644309 , 1176320 , 768836476 , 348478459 , 8085700233 , 603513974
n×2
175944030
n×3
263916045
n×4
351888060
n×5
439860075
n÷2
43986007.5
n÷3
29324005
n÷3
21993003.75
n÷5
17594403
n2
7739075423160225
n3
6.8082205921238E+23
n4
5.9893288405363E+31
n5
5.2689332659959E+39
2 √n
9379.3397955293
3 √n
444.74886305214
4 √n
96.846991670001
5 √n
38.803322022492
1 , 3 , 5 , 15 , 47 , 141 , 235 , 705 , 124783 , 374349 , 623915 , 1871745 , 5864801 , 17594403 , 29324005 , 87972015
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
-87972014
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 87972015 can be divided by 16 positive divisors.
The sum of these divisors (counting 87972015) is 1, the average is 0.0625.
Base
System
Value
2
Binary
101001111100101100010101111
3
Ternary
20010112102220210
4
Quaternary
11033211202233
5
Quinary
140010101030
6
Senary
12421313503
8
Octal
517454257
10
Decimal
87972015
12
Duodecimal
25565893
16
Hexadecimal
53e58af
20
Vigesimal
179ga0f
36
Base36
1gdjn3
md5
85f4c092b33757cb81d0dcaa85d95009
sha1
18b7e03f127aaf5480486df563a07177e2018f73
sha256
2f87948bf8d7ee42c3f2612c8943e7378de9b76cfc91a711dbc35202c350a46a
sha512
835856be939b1cb366cbc40b15e7e0d3d084fe6f0953bd2f8204a458d4eb9ce2f8867363a69ed0adb94c290945acc67365b3dd82d5aee3830bea8e46d39b1055
ripemd-160
77537054747840691d431e0385ac23acac37630d
Diameter
175944030
Circumference
552744472.09098
Area
2.4313022494977E+16
Volume
2.8518207728313E+24
Surface area
9.725208997991E+16
Circumference
552744472.09098
Perimeter
351888060
Area
7739075423160225
Diagonal
124411216.72229
Surface area
46434452538961350
Volume
6.8082205921238E+23
Space diagonal
152371999.62421
Perimeter
263916045
Area
3.3511179591303E+15
Altitude
76185999.812106
Surface area
3.3511179591303E+15
Volume
8.0235649141744E+22
Height
41470405.574096