85387891 is an odd 8-digits composite number following 85387890
and preceding 85387892 . In scientific notation, it is written as 8.5387891 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 81675352 positive integers (up to 85387891) that are relatively prime to 85387891.
85387891 has 4 divisors, whose sum is 89100432
The reverse of 85387891 is 19878358
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
eighty-five million three hundred eighty-seven thousand eight hundred ninety-one
Scientific notation
8.5387891 × 10^7
Engineering notation
8.5387891 × 10^6
Prime Factorization
23 × 3712517
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
85387891
Product of the distinct prime numbers
The prime factorization of 85387891 is 23 × 3712517.
Since it has a total of 2 prime factors.
5 , 7 , 71 , 48 , 372 , 861 , 6751 , 8145 , 47914 , 71541 , 373951 , 913111 , 8820965 , 2403677 , 7560331 , 70995986 , 306422737 , 559119217 , 6600133868 , 5312691532
n×2
170775782
n×3
256163673
n×4
341551564
n×5
426939455
n÷2
42693945.5
n÷3
28462630.333333
n÷3
21346972.75
n÷5
17077578.2
n2
7291091929427881
n3
6.2257096294097E+23
n4
5.3160021523368E+31
n5
4.539222123395E+39
2 √n
9240.5568555147
3 √n
440.35077228385
4 √n
96.127815202025
5 √n
38.572630533118
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
-85387890
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 85387891 can be divided by 4 positive divisors.
The sum of these divisors (counting 85387891) is 1, the average is 0.25.
Base
System
Value
2
Binary
101000101101110101001110011
3
Ternary
12221200011011111
4
Quaternary
11011232221303
5
Quinary
133324403031
6
Senary
12250054151
8
Octal
505565163
10
Decimal
85387891
12
Duodecimal
2471a357
16
Hexadecimal
516ea73
20
Vigesimal
16dd9eb
36
Base36
1eu5pv
md5
487a6864cb2d6f21433abb1cf9a6ab30
sha1
df3e33ca56d2e7d7cfa5e7538a2b10a33b76b579
sha256
6016e05bca57b954b49ac1d9484ea654cb4255147665ce4b238828f80240e46a
sha512
3a34bb652aa73d2fa51ab411f2e3588b08fcca3c7a94702e1a029e4498c3e45ed2bc31fc6e4e98d5855e718c2e7646bb03a5b74f52c5091d65703ed9ffb65472
ripemd-160
7c7711bb5084050c43c8d7b7872d397bb44b7108
Diameter
170775782
Circumference
536507942.14225
Area
2.2905640842138E+16
Volume
2.6078191513516E+24
Surface area
9.1622563368554E+16
Circumference
536507942.14225
Perimeter
341551564
Area
7291091929427881
Diagonal
120756713.51464
Surface area
43746551576567286
Volume
6.2257096294097E+23
Space diagonal
147896165.56315
Perimeter
256163673
Area
3.1571354161061E+15
Altitude
73948082.781577
Surface area
3.1571354161061E+15
Volume
7.33706916109E+22
Height
40252237.838212