87012913 is an odd 8-digits composite number following 87012912
and preceding 87012914 . In scientific notation, it is written as 8.7012913 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 76088160 positive integers (up to 87012913) that are relatively prime to 87012913.
87012913 has 12 divisors, whose sum is 98903028
The reverse of 87012913 is 31921078
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-seven million twelve thousand nine hundred thirteen
Scientific notation
8.7012913 × 10^7
Engineering notation
8.7012913 × 10^6
Prime Factorization
13 × 19 × 19 × 18541
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
4579627
Product of the distinct prime numbers
The prime factorization of 87012913 is 13 × 19 × 19 × 18541.
Since it has a total of 4 prime factors.
1 , 1 , 95 , 75 , 733 , 251 , 8604 , 4096 , 15109 , 50221 , 558901 , 154941 , 7286509 , 2094054 , 70097920 , 70316968 , 777958559 , 887205985 , 8864458530 , 2424486262
n×2
174025826
n×3
261038739
n×4
348051652
n×5
435064565
n÷2
43506456.5
n÷3
29004304.333333
n÷3
21753228.25
n÷5
17402582.6
n2
7571247028745569
n3
6.5879625901375E+23
n4
5.7323781570289E+31
n5
4.9879092186065E+39
2 √n
9328.0712368635
3 √n
443.12668373538
4 √n
96.581940531672
5 √n
38.718341106955
1 , 13 , 19 , 247 , 361 , 4693 , 18541 , 241033 , 352279 , 4579627 , 6693301 , 87012913
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87012912
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87012913 can be divided by 12 positive divisors.
The sum of these divisors (counting 87012913) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101001011111011011000110001
3
Ternary
20001201201021111
4
Quaternary
11023323120301
5
Quinary
134233403123
6
Senary
12344553321
8
Octal
513733061
10
Decimal
87012913
12
Duodecimal
25182841
16
Hexadecimal
52fb631
20
Vigesimal
173gc5d
36
Base36
1fszld
md5
a466b140b341a874847e81ad8556cca5
sha1
5606e7aafa1c5a22403d66299e831c0ba532d915
sha256
d7008ad5a961d57d722f0aa8826533aae61f1c566e0c8d1cd8264d66ad630551
sha512
9cb4d415add5546d9db4a95cf70f0e6f9a132143b91ce1bc0ff4eed140c134be1544f42ded91c72aa2d76ec8b9c1f2486d4d33f3c25a012d353bde115ed2f086
ripemd-160
a14649fd01864249fb5a4d5a40cc6676cf1a5a7d
Diameter
174025826
Circumference
546718256.4965
Area
2.3785774044021E+16
Volume
2.7595593167067E+24
Surface area
9.5143096176083E+16
Circumference
546718256.4965
Perimeter
348051652
Area
7571247028745569
Diagonal
123054841.66619
Surface area
45427482172473414
Volume
6.5879625901375E+23
Space diagonal
150710786.23057
Perimeter
261038739
Area
3.2784461326106E+15
Altitude
75355393.115285
Surface area
3.2784461326106E+15
Volume
7.7639883694825E+22
Height
41018280.555397