87125891 is an odd 8-digits composite number following 87125890
and preceding 87125892 . In scientific notation, it is written as 8.7125891 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 87024072 positive integers (up to 87125891) that are relatively prime to 87125891.
87125891 has 4 divisors, whose sum is 87227712
The reverse of 87125891 is 19852178
Previous prime number is 863
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-seven million one hundred twenty-five thousand eight hundred ninety-one
Scientific notation
8.7125891 × 10^7
Engineering notation
8.7125891 × 10^6
Prime Factorization
863 × 100957
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87125891
Product of the distinct prime numbers
The prime factorization of 87125891 is 863 × 100957.
Since it has a total of 2 prime factors.
8 , 10 , 36 , 1 , 584 , 171 , 4056 , 192 , 32785 , 73485 , 510928 , 71886 , 6230147 , 9998974 , 75599151 , 2788089 , 788316286 , 146299995 , 9342729231 , 4748492335
n×2
174251782
n×3
261377673
n×4
348503564
n×5
435629455
n÷2
43562945.5
n÷3
29041963.666667
n÷3
21781472.75
n÷5
17425178.2
n2
7590920882543881
n3
6.6136574540214E+23
n4
5.7622079845041E+31
n5
5.0203750477723E+39
2 √n
9334.1250795133
3 √n
443.31838675497
4 √n
96.613275896811
5 √n
38.728390306558
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87125890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87125891 can be divided by 4 positive divisors.
The sum of these divisors (counting 87125891) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100010110111110000011
3
Ternary
20001221110020212
4
Quaternary
11030112332003
5
Quinary
134301012031
6
Senary
12351224335
8
Octal
514267603
10
Decimal
87125891
12
Duodecimal
252180ab
16
Hexadecimal
5316f83
20
Vigesimal
174aeeb
36
Base36
1fvern
md5
ced390bae739fedf22c007c67d4cdd16
sha1
fd376330a7c0051f741f5a0204d9c3967b53473f
sha256
500c210cb7d4bd9e217539c701c7b68e03bfbbccd4b425b26515ce5d8b5ea9c5
sha512
4b35bdf91de269614e0b24abee47a5051342e5b2277d144a461857e3206b7cacf32ebda00fcb037c2dd90d60192699aec5e1efc81bda6c59e232eb879dd70989
ripemd-160
2e12cf4eb494a11cbb31ba9a09b350e6479623d5
Diameter
174251782
Circumference
547428118.20613
Area
2.3847581278581E+16
Volume
2.7703223561217E+24
Surface area
9.5390325114325E+16
Circumference
547428118.20613
Perimeter
348503564
Area
7590920882543881
Diagonal
123214616.68604
Surface area
45545525295263286
Volume
6.6136574540214E+23
Space diagonal
150906469.86671
Perimeter
261377673
Area
3.2869651612004E+15
Altitude
75453234.933354
Surface area
3.2869651612004E+15
Volume
7.7942700569725E+22
Height
41071538.895347