87942865 is an odd 8-digits composite number following 87942864
and preceding 87942866 . In scientific notation, it is written as 8.7942865 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 70354288 positive integers (up to 87942865) that are relatively prime to 87942865.
87942865 has 4 divisors, whose sum is 105531444
The reverse of 87942865 is 56824978
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighty-seven million nine hundred forty-two thousand eight hundred sixty-five
Scientific notation
8.7942865 × 10^7
Engineering notation
8.7942865 × 10^6
Prime Factorization
5 × 17588573
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87942865
Product of the distinct prime numbers
The prime factorization of 87942865 is 5 × 17588573.
Since it has a total of 2 prime factors.
5 , 3 , 93 , 76 , 263 , 971 , 1762 , 1842 , 92008 , 33173 , 903122 , 731175 , 193824 , 3186136 , 82614040 , 38760174 , 396930575 , 647274892 , 7108752765 , 5652841796
n×2
175885730
n×3
263828595
n×4
351771460
n×5
439714325
n÷2
43971432.5
n÷3
29314288.333333
n÷3
21985716.25
n÷5
17588573
n2
7733947504408225
n3
6.8014550129726E+23
n4
5.9813944000942E+31
n5
5.2602096023924E+39
2 √n
9377.7857194542
3 √n
444.69973431665
4 √n
96.838967980118
5 √n
38.800750143724
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
-87942864
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 87942865 can be divided by 4 positive divisors.
The sum of these divisors (counting 87942865) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001111011110011011010001
3
Ternary
20010110221221011
4
Quaternary
11033132123101
5
Quinary
140003132430
6
Senary
12420530521
8
Octal
517363321
10
Decimal
87942865
12
Duodecimal
25550a41
16
Hexadecimal
53de6d1
20
Vigesimal
179ch35
36
Base36
1gcx5d
md5
bc77ecb9f6391c30de14417396f1fa52
sha1
e94cfb20f65e520fd89fabdf883c95ec23d32c25
sha256
c307d7b08fe003c16406a9fb9d4db15d0edec682e0b7a7d72988fde141fad709
sha512
5f0e9fb110e942cb0ca144dd14bee4a7cbe77444f147346f6622cde90b58ba0a9d14b787acf0cb4846ee4786fdc9f67e15017d92d56cff2790d9195216b75c59
ripemd-160
14e88592e51adeb7fd7ce80267347284fefde67a
Diameter
175885730
Circumference
552561317.23928
Area
2.4296912663098E+16
Volume
2.8489868136635E+24
Surface area
9.7187650652392E+16
Circumference
552561317.23928
Perimeter
351771460
Area
7733947504408225
Diagonal
124369992.39695
Surface area
46403685026449350
Volume
6.8014550129726E+23
Space diagonal
152321510.34317
Perimeter
263828595
Area
3.3488975051764E+15
Altitude
76160755.171585
Surface area
3.3488975051764E+15
Volume
8.0155916026803E+22
Height
41456664.132315