87121010 is an even 8-digits composite number following 87121009
and preceding 87121011 . In scientific notation, it is written as 8.7121010 × 10^7.
The sum of its digits is 20. It has a total of 5 prime factors and 32 positive divisors.
There are 32473056 positive integers (up to 87121010) that are relatively prime to 87121010.
87121010 has 32 divisors, whose sum is 164229120
The reverse of 87121010 is 01012178
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighty-seven million one hundred twenty-one thousand ten
Scientific notation
8.7121010 × 10^7
Engineering notation
8.7121010 × 10^6
Prime Factorization
2 × 5 × 989 × 23 × 383
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
87121010
Product of the distinct prime numbers
The prime factorization of 87121010 is 2 × 5 × 989 × 23 × 383.
Since it has a total of 5 prime factors.
2 , 7 , 75 , 96 , 747 , 571 , 7494 , 6917 , 36341 , 42815 , 421450 , 158279 , 4067573 , 1374857 , 66263936 , 18321451 , 517682362 , 976797577 , 4913706747 , 764373158
n×2
174242020
n×3
261363030
n×4
348484040
n×5
435605050
n÷2
43560505
n÷3
29040336.666667
n÷3
21780252.5
n÷5
17424202
n2
7590070383420100
n3
6.6125459777465E+23
n4
5.7609168425271E+31
n5
5.0189689384697E+39
2 √n
9333.8636158881
3 √n
443.31010801628
4 √n
96.611922741907
5 √n
38.727956365494
1 , 2 , 5 , 10 , 23 , 46 , 115 , 230 , 383 , 766 , 989 , 1915 , 1978 , 3830 , 4945 , 8809 , 9890 , 17618 , 22747 , 44045 , 45494 , 88090 , 113735 , 227470 , 378787 , 757574 , 1893935 , 3787870 , 8712101 , 17424202 , 43560505 , 87121010
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87121009
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87121010 can be divided by 32 positive divisors.
The sum of these divisors (counting 87121010) is 1, the average is 0.03125.
Base
System
Value
2
Binary
101001100010101110001110010
3
Ternary
20001221012120002
4
Quaternary
11030111301302
5
Quinary
134300333020
6
Senary
12351150002
8
Octal
514256162
10
Decimal
87121010
12
Duodecimal
25215302
16
Hexadecimal
5315c72
20
Vigesimal
174a2aa
36
Base36
1fvb02
md5
e23c7d5d7ed8720d8a009e77e6b4b6bc
sha1
4d9a677296beeb412ef3e9cc1579c1c3dff2b259
sha256
05354118fc7040ddef9fc0b9a0e3507c2349eb00a5445a603c0b1f22035808e9
sha512
69cc90b73ff35a08cef4d3672b45b814466b7a18fd2ec7570f570ae1cdc7387b5edb7c11a429db8ecba8324fbb57e390cd122eb2265853f2efe98b1d109b27bf
ripemd-160
e919ef7fa7cb0208ee0f08fb068f27a0d14d34a8
Diameter
174242020
Circumference
547397449.97865
Area
2.3844909356782E+16
Volume
2.7698567820284E+24
Surface area
9.5379637427128E+16
Circumference
547397449.97865
Perimeter
348484040
Area
7590070383420100
Diagonal
123207713.90964
Surface area
45540422300520600
Volume
6.6125459777465E+23
Space diagonal
150898015.72672
Perimeter
261363030
Area
3.2865968842769E+15
Altitude
75449007.863358
Surface area
3.2865968842769E+15
Volume
7.7929601696206E+22
Height
41069237.969881