31130145 is an odd 8-digits composite number following 31130144
and preceding 31130146 . In scientific notation, it is written as 3.1130145 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 15625728 positive integers (up to 31130145) that are relatively prime to 31130145.
31130145 has 16 divisors, whose sum is 46879488
The reverse of 31130145 is 54103113
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
thirty-one million one hundred thirty thousand one hundred forty-five
Scientific notation
3.1130145 × 10^7
Engineering notation
3.1130145 × 10^6
Prime Factorization
3 × 15 × 17 × 40693
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31130145
Product of the distinct prime numbers
The prime factorization of 31130145 is 3 × 15 × 17 × 40693.
Since it has a total of 4 prime factors.
7 , 10 , 48 , 45 , 73 , 828 , 544 , 20 , 57041 , 96890 , 748084 , 783154 , 6624434 , 7758261 , 63114329 , 50362733 , 86009539 , 880619710 , 5601841045 , 1983652318
n×2
62260290
n×3
93390435
n×4
124520580
n×5
155650725
n÷2
15565072.5
n÷3
10376715
n÷3
7782536.25
n÷5
6226029
n2
969085927721025
n3
3.0167785447415E+22
n4
9.3912753530692E+29
n5
2.9235176347597E+37
2 √n
5579.4394879773
3 √n
314.5770589902
4 √n
74.695645709621
5 √n
31.523630527243
1 , 3 , 15 , 17 , 45 , 51 , 255 , 765 , 40693 , 122079 , 610395 , 691781 , 1831185 , 2075343 , 10376715 , 31130145
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31130144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31130145 can be divided by 16 positive divisors.
The sum of these divisors (counting 31130145) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110110000001000100001
3
Ternary
2011120120112100
4
Quaternary
1312300020201
5
Quinary
30432131040
6
Senary
3031121013
8
Octal
166601041
10
Decimal
31130145
12
Duodecimal
a513169
16
Hexadecimal
1db0221
20
Vigesimal
9eb575
36
Base36
ij869
md5
30f4e980653aaf13ca1e9b8b6fff5b4f
sha1
95f6c7b51de1aaceba9ee0243af29fda26a94635
sha256
f9dc1e618a9b9b80466076e804ec67cc6e0d8d155c3a10e15f8cfa8293b10539
sha512
7ba9ffdec5230e3b51cd2ffab122825f179accab1cbce7528e1db58a8381db0149a340c7b77646bb918b3c786bb26df86523dc6ffac0141645cf87c36375ad16
ripemd-160
8d135f422f9dac12e3ba0d846616c5c3787bf1da
Diameter
62260290
Circumference
195596469.67437
Area
3.0444732312256E+15
Volume
1.2636652418223E+23
Surface area
1.2177892924902E+16
Circumference
195596469.67437
Perimeter
124520580
Area
969085927721025
Diagonal
44024673.257641
Surface area
5814515566326150
Volume
3.0167785447415E+22
Space diagonal
53918992.786986
Perimeter
93390435
Area
4.1962651592821E+14
Altitude
26959496.393493
Surface area
4.1962651592821E+14
Volume
3.5553076105413E+21
Height
14674891.08588