87121012 is an even 8-digits composite number following 87121011
and preceding 87121013 . In scientific notation, it is written as 8.7121012 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 12 positive divisors.
There are 39600440 positive integers (up to 87121012) that are relatively prime to 87121012.
87121012 has 12 divisors, whose sum is 166322016
The reverse of 87121012 is 21012178
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-seven million one hundred twenty-one thousand twelve
Scientific notation
8.7121012 × 10^7
Engineering notation
8.7121012 × 10^6
Prime Factorization
2 × 2 × 11 × 1980023
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
43560506
Product of the distinct prime numbers
The prime factorization of 87121012 is 2 × 2 × 11 × 1980023.
Since it has a total of 4 prime factors.
6 , 10 , 99 , 56 , 541 , 695 , 3882 , 7198 , 70568 , 83468 , 173159 , 952754 , 6344855 , 8234707 , 11216733 , 34781473 , 228298194 , 391686444 , 5763213288 , 4290294793
n×2
174242024
n×3
261363036
n×4
348484048
n×5
435605060
n÷2
43560506
n÷3
29040337.333333
n÷3
21780253
n÷5
17424202.4
n2
7590070731904144
n3
6.6125464331507E+23
n4
5.7609173715308E+31
n5
5.0189695145614E+39
2 √n
9333.8637230249
3 √n
443.31011140857
4 √n
96.611923296376
5 √n
38.727956543306
1 , 2 , 4 , 11 , 22 , 44 , 1980023 , 3960046 , 7920092 , 21780253 , 43560506 , 87121012
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
-87121011
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 87121012 can be divided by 12 positive divisors.
The sum of these divisors (counting 87121012) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101001100010101110001110100
3
Ternary
20001221012120011
4
Quaternary
11030111301310
5
Quinary
134300333022
6
Senary
12351150004
8
Octal
514256164
10
Decimal
87121012
12
Duodecimal
25215304
16
Hexadecimal
5315c74
20
Vigesimal
174a2ac
36
Base36
1fvb04
md5
11d83538200d76da92e0efb1095acf6b
sha1
6335669239bb193bafc7edb9791aaaaa48fab0d1
sha256
d7e26038b53834f454964e05d62e8fafb6b08df55e2a787010ef2b419880e745
sha512
00d6178d4c4214411fef6f11c3752f0ea2844270c4bddeb2db5ee4f5d81135db063d3dc64fa14dd2191e7bc35104f03e8b4ecc2f82f1892952197e8be6810427
ripemd-160
71774ec1d82f3c5a589e4ba1d319637e48a228fa
Diameter
174242024
Circumference
547397462.54502
Area
2.3844910451577E+16
Volume
2.7698569727877E+24
Surface area
9.5379641806308E+16
Circumference
547397462.54502
Perimeter
348484048
Area
7590070731904144
Diagonal
123207716.73807
Surface area
45540424391424864
Volume
6.6125464331507E+23
Space diagonal
150898019.19082
Perimeter
261363036
Area
3.2865970351749E+15
Altitude
75449009.595409
Surface area
3.2865970351749E+15
Volume
7.7929607063196E+22
Height
41069238.91269