87121444 is an even 8-digits composite number following 87121443
and preceding 87121445 . In scientific notation, it is written as 8.7121444 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 6 positive divisors.
There are 43560720 positive integers (up to 87121444) that are relatively prime to 87121444.
87121444 has 6 divisors, whose sum is 152462534
The reverse of 87121444 is 44412178
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-seven million one hundred twenty-one thousand four hundred forty-four
Scientific notation
8.7121444 × 10^7
Engineering notation
8.7121444 × 10^6
Prime Factorization
2 × 2 × 21780361
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
43560722
Product of the distinct prime numbers
The prime factorization of 87121444 is 2 × 2 × 21780361.
Since it has a total of 3 prime factors.
8 , 8 , 35 , 36 , 954 , 643 , 2078 , 4901 , 65860 , 46293 , 358292 , 797428 , 5330624 , 3682015 , 91877242 , 42507902 , 630886311 , 327183913 , 748492728 , 1362183283
n×2
174242888
n×3
261364332
n×4
348485776
n×5
435607220
n÷2
43560722
n÷3
29040481.333333
n÷3
21780361
n÷5
17424288.8
n2
7590146004645136
n3
6.6126448009551E+23
n4
5.7610316371831E+31
n5
5.0190939516107E+39
2 √n
9333.8868645383
3 √n
443.31084414283
4 √n
96.612043061609
5 √n
38.727994950674
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87121443
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87121444 can be divided by 6 positive divisors.
The sum of these divisors (counting 87121444) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
101001100010101111000100100
3
Ternary
20001221020011011
4
Quaternary
11030111320210
5
Quinary
134300341234
6
Senary
12351152004
8
Octal
514257044
10
Decimal
87121444
12
Duodecimal
25215604
16
Hexadecimal
5315e24
20
Vigesimal
174a3c4
36
Base36
1fvbc4
md5
d1e29a84e29a0494bc0b52d5e471203d
sha1
6c644103ffab273a737d4a277919d1e8739b0001
sha256
5f3b8dc9ecbd52bd580934f2a3dc8ab3a63588a04ba0e12dc71b584d714682ba
sha512
9115a9df340ee854443ff176a655962ca9844f17eba57d4ee00d9efcdde2038f8271746f097f98476c2fe238bd6f8aaa376e1f3a210c1c0ea271a8cbeeb43517
ripemd-160
8d6acc0526f7f6fd2cdd872191088b73c913f7b1
Diameter
174242888
Circumference
547400176.88107
Area
2.3845146927867E+16
Volume
2.7698981769973E+24
Surface area
9.5380587711468E+16
Circumference
547400176.88107
Perimeter
348485776
Area
7590146004645136
Diagonal
123208327.67833
Surface area
45540876027870816
Volume
6.6126448009551E+23
Space diagonal
150898767.43677
Perimeter
261364332
Area
3.2866296292278E+15
Altitude
75449383.718383
Surface area
3.2866296292278E+15
Volume
7.7930766338889E+22
Height
41069442.559443