31005385 is an odd 8-digits composite number following 31005384
and preceding 31005386 . In scientific notation, it is written as 3.1005385 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 23970240 positive integers (up to 31005385) that are relatively prime to 31005385.
31005385 has 16 divisors, whose sum is 38479680
The reverse of 31005385 is 58350013
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
thirty-one million five thousand three hundred eighty-five
Scientific notation
3.1005385 × 10^7
Engineering notation
3.1005385 × 10^6
Prime Factorization
5 × 59 × 61 × 1723
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31005385
Product of the distinct prime numbers
The prime factorization of 31005385 is 5 × 59 × 61 × 1723.
Since it has a total of 4 prime factors.
4 , 6 , 65 , 49 , 446 , 51 , 7561 , 6512 , 94286 , 14197 , 213802 , 259154 , 6877246 , 4233026 , 93759160 , 99507253 , 117055949 , 231877286 , 4863585198 , 3190953498
n×2
62010770
n×3
93016155
n×4
124021540
n×5
155026925
n÷2
15502692.5
n÷3
10335128.333333
n÷3
7751346.25
n÷5
6201077
n2
961333898998225
n3
2.9806527651991E+22
n4
9.2416286536313E+29
n5
2.8654025443287E+37
2 √n
5568.2479291066
3 √n
314.15625379333
4 √n
74.620693705611
5 √n
31.49832253033
1 , 5 , 59 , 61 , 295 , 305 , 1723 , 3599 , 8615 , 17995 , 101657 , 105103 , 508285 , 525515 , 6201077 , 31005385
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
-31005384
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 31005385 can be divided by 16 positive divisors.
The sum of these divisors (counting 31005385) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110010001101011001001
3
Ternary
2011100020101121
4
Quaternary
1312101223021
5
Quinary
30414133020
6
Senary
3024315241
8
Octal
166215311
10
Decimal
31005385
12
Duodecimal
a472b21
16
Hexadecimal
1d91ac9
20
Vigesimal
9dfd95
36
Base36
igjwp
md5
e88af4a7b47102d0b1b7576c416405b5
sha1
77bee61e0ee5fd5f7da045a4e5b39a4b852f18e4
sha256
8b36487ae938ca5bd39fee0b777e6cb0b54b76869cc8bb92cd506181625ce6f0
sha512
5a6926fa5454ac99e9150ca5d446f7c0698eb5869b98ecda6926c20df9213300da9a996befd53cefb70e96e136274a0ba7f729689180d78405e36aa19b330f13
ripemd-160
aaf2608bafdcffd2db9e1cd23eb195017e140e0e
Diameter
62010770
Circumference
194812579.47545
Area
3.0201195147397E+15
Volume
1.2485329106735E+23
Surface area
1.2080478058959E+16
Circumference
194812579.47545
Perimeter
124021540
Area
961333898998225
Diagonal
43848235.973599
Surface area
5768003393989350
Volume
2.9806527651991E+22
Space diagonal
53702902.128234
Perimeter
93016155
Area
4.162697890258E+14
Altitude
26851451.064117
Surface area
4.162697890258E+14
Volume
3.5127329710579E+21
Height
14616078.657866