90872781 is an odd 8-digits composite number following 90872780
and preceding 90872782 . In scientific notation, it is written as 9.0872781 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 60449520 positive integers (up to 90872781) that are relatively prime to 90872781.
90872781 has 8 divisors, whose sum is 121428384
The reverse of 90872781 is 18727809
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
ninety million eight hundred seventy-two thousand seven hundred eighty-one
Scientific notation
9.0872781 × 10^7
Engineering notation
9.0872781 × 10^6
Prime Factorization
3 × 461 × 65707
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
90872781
Product of the distinct prime numbers
The prime factorization of 90872781 is 3 × 461 × 65707.
Since it has a total of 3 prime factors.
10 , 7 , 86 , 68 , 72 , 273 , 6446 , 2111 , 94934 , 87894 , 996654 , 232382 , 7179427 , 5521690 , 12262681 , 70512505 , 129977360 , 34289224 , 4919376821 , 8747521617
n×2
181745562
n×3
272618343
n×4
363491124
n×5
454363905
n÷2
45436390.5
n÷3
30290927
n÷3
22718195.25
n÷5
18174556.2
n2
8257862326673961
n3
7.5041491473999E+23
n4
6.8192290206301E+31
n5
6.1968230538056E+39
2 √n
9532.721594592
3 √n
449.58444105563
4 √n
97.635657393147
5 √n
39.055910226841
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-90872780
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 90872781 can be divided by 8 positive divisors.
The sum of these divisors (counting 90872781) is 1, the average is 0.125.
Base
System
Value
2
Binary
101011010101001101111001101
3
Ternary
20022222211000120
4
Quaternary
11122221233031
5
Quinary
141230412111
6
Senary
13003415153
8
Octal
532515715
10
Decimal
90872781
12
Duodecimal
265244b9
16
Hexadecimal
56a9bcd
20
Vigesimal
187j1j1
36
Base36
1i3pvx
md5
c4f6e32743cb2b92a77c630d42e56e16
sha1
278510206e92591ccf048efe094b70e333bc0979
sha256
1218da1e833cb26cb686c4f1dbd671b1e1a9ad17ccc671fc14c994525f7b0d94
sha512
483d6b66e2e352f1f6b6ed1dcb95dff8f9e515cf12420ed141bc5c5dbde6997bd1272d58e85a6fd2b0909cc318108a09ded3753d537e079a055e05ca5771cb7b
ripemd-160
f3a4a4613f28478372c577d77808bafad778bd43
Diameter
181745562
Circumference
570970522.40175
Area
2.5942839619835E+16
Volume
3.1433306443885E+24
Surface area
1.0377135847934E+17
Circumference
570970522.40175
Perimeter
363491124
Area
8257862326673961
Diagonal
128513519.34076
Surface area
49547173960043766
Volume
7.5041491473999E+23
Space diagonal
157396273.71708
Perimeter
272618343
Area
3.5757592779271E+15
Altitude
78698136.85854
Surface area
3.5757592779271E+15
Volume
8.8437245819362E+22
Height
42837839.780253