87239871 is an odd 8-digits composite number following 87239870
and preceding 87239872 . In scientific notation, it is written as 8.7239871 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 57959664 positive integers (up to 87239871) that are relatively prime to 87239871.
87239871 has 12 divisors, whose sum is 126447048
The reverse of 87239871 is 17893278
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-seven million two hundred thirty-nine thousand eight hundred seventy-one
Scientific notation
8.7239871 × 10^7
Engineering notation
8.7239871 × 10^6
Prime Factorization
3 × 3 × 293 × 33083
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
29079957
Product of the distinct prime numbers
The prime factorization of 87239871 is 3 × 3 × 293 × 33083.
Since it has a total of 4 prime factors.
7 , 1 , 7 , 54 , 363 , 784 , 3973 , 3004 , 83960 , 9136 , 138491 , 319239 , 202644 , 8212451 , 4356730 , 56530700 , 173562164 , 592771029 , 8432295201 , 2959783944
n×2
174479742
n×3
261719613
n×4
348959484
n×5
436199355
n÷2
43619935.5
n÷3
29079957
n÷3
21809967.75
n÷5
17447974.2
n2
7610795092096641
n3
6.6396478204194E+23
n4
5.7924201933882E+31
n5
5.0532999044898E+39
2 √n
9340.2286374585
3 √n
443.51162212421
4 √n
96.64485830844
5 √n
38.738518073986
1 , 3 , 9 , 293 , 879 , 2637 , 33083 , 99249 , 297747 , 9693319 , 29079957 , 87239871
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
-87239870
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 87239871 can be divided by 12 positive divisors.
The sum of these divisors (counting 87239871) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101001100110010110010111111
3
Ternary
20002011020121100
4
Quaternary
11030302302333
5
Quinary
134313133441
6
Senary
12353504143
8
Octal
514626277
10
Decimal
87239871
12
Duodecimal
25272053
16
Hexadecimal
5332cbf
20
Vigesimal
1754jdb
36
Base36
1fxupr
md5
1b35fb2fff02cd0af6b5b83483c85ffa
sha1
82599f82144b555344ebce9207661be90d34e017
sha256
2abc7ff1caf34937f465ece68ceaf484b50dcdbb280153b266d7caa1634158a1
sha512
fb51505878a70b2ded3907b60f485a85c5d774174f64642f4631da954b7ebfded093446d19d748728d220af8c8577bf5665d9b1cc4c1cddecac9862fcc6f185c
ripemd-160
d94c5f200cc7f9f4700732b804e6a3bd4cd7975e
Diameter
174479742
Circumference
548144275.66744
Area
2.3910017949308E+16
Volume
2.7812091753404E+24
Surface area
9.5640071797232E+16
Circumference
548144275.66744
Perimeter
348959484
Area
7610795092096641
Diagonal
123375808.74788
Surface area
45664770552579846
Volume
6.6396478204194E+23
Space diagonal
151103889.01775
Perimeter
261719613
Area
3.2955709463768E+15
Altitude
75551944.508877
Surface area
3.2955709463768E+15
Volume
7.8248999975151E+22
Height
41125269.582626