87081971 is an odd 8-digits composite number following 87081970
and preceding 87081972 . In scientific notation, it is written as 8.7081971 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 86455344 positive integers (up to 87081971) that are relatively prime to 87081971.
87081971 has 4 divisors, whose sum is 87708600
The reverse of 87081971 is 17918078
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-seven million eighty-one thousand nine hundred seventy-one
Scientific notation
8.7081971 × 10^7
Engineering notation
8.7081971 × 10^6
Prime Factorization
139 × 626489
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87081971
Product of the distinct prime numbers
The prime factorization of 87081971 is 139 × 626489.
Since it has a total of 2 prime factors.
5 , 5 , 92 , 94 , 312 , 230 , 1458 , 4170 , 14422 , 69879 , 91377 , 831852 , 3572561 , 5409227 , 77126250 , 49718046 , 83688318 , 699461502 , 825788987 , 7843196872
n×2
174163942
n×3
261245913
n×4
348327884
n×5
435409855
n÷2
43540985.5
n÷3
29027323.666667
n÷3
21770492.75
n÷5
17416394.2
n2
7583269673244841
n3
6.6036606977069E+23
n4
5.7505978937155E+31
n5
5.0077339901319E+39
2 √n
9331.772125379
3 √n
443.24388224229
4 √n
96.601097951208
5 √n
38.724484937063
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
-87081970
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 87081971 can be divided by 4 positive divisors.
The sum of these divisors (counting 87081971) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100001100001111110011
3
Ternary
20001212020000012
4
Quaternary
11030030033303
5
Quinary
134243110341
6
Senary
12350245135
8
Octal
514141763
10
Decimal
87081971
12
Duodecimal
251b67ab
16
Hexadecimal
530c3f3
20
Vigesimal
17454ib
36
Base36
1fugvn
md5
21202c7747bdb88acc12d1d4209bde1c
sha1
13886e8fc57a01527a5ff4650fcb50849329eacb
sha256
c6e81e00bf66fbb375792cc2cad55fd5d294acacf531f2000004f4bf5a1f49c6
sha512
318db2555849d7620d43d7ad821e3d48d85a6b479b29bdabb38b7dabbdb6996181db7b57bbbb2a589e889301c26c0d449a45d72a2ec10a5006259b3cd3c70a68
ripemd-160
00f5bc577f98e6084788caff52fef6041e8dd2cc
Diameter
174163942
Circumference
547152160.70744
Area
2.3823544295656E+16
Volume
2.7661349246287E+24
Surface area
9.5294177182625E+16
Circumference
547152160.70744
Perimeter
348327884
Area
7583269673244841
Diagonal
123152504.42638
Surface area
45499618039469046
Volume
6.6036606977069E+23
Space diagonal
150830398.19524
Perimeter
261245913
Area
3.2836520903891E+15
Altitude
75415199.09762
Surface area
3.2836520903891E+15
Volume
7.7824887666727E+22
Height
41050834.808794