31191919 is an odd 8-digits composite number following 31191918
and preceding 31191920 . In scientific notation, it is written as 3.1191919 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors.
There are 27720000 positive integers (up to 31191919) that are relatively prime to 31191919.
31191919 has 16 divisors, whose sum is 34801920
The reverse of 31191919 is 91919113
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
thirty-one million one hundred ninety-one thousand nine hundred nineteen
Scientific notation
3.1191919 × 10^7
Engineering notation
3.1191919 × 10^6
Prime Factorization
11 × 89 × 211 × 151
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31191919
Product of the distinct prime numbers
The prime factorization of 31191919 is 11 × 89 × 211 × 151.
Since it has a total of 4 prime factors.
3 , 3 , 35 , 36 , 494 , 940 , 8893 , 8065 , 21696 , 75052 , 910216 , 282760 , 8159583 , 8616895 , 81187623 , 14634568 , 696936741 , 242124382 , 2896079039 , 6577798832
n×2
62383838
n×3
93575757
n×4
124767676
n×5
155959595
n÷2
15595959.5
n÷3
10397306.333333
n÷3
7797979.75
n÷5
6238383.8
n2
972935810902561
n3
3.0347735005872E+22
n4
9.4660409213662E+29
n5
2.9526398166994E+37
2 √n
5584.9726051253
3 √n
314.78500152156
4 √n
74.732674280567
5 √n
31.536131573321
1 , 11 , 89 , 151 , 211 , 979 , 1661 , 2321 , 13439 , 18779 , 31861 , 147829 , 206569 , 350471 , 2835629 , 31191919
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
-31191918
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 31191919 can be divided by 16 positive divisors.
The sum of these divisors (counting 31191919) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110111111001101101111
3
Ternary
2011200201021021
4
Quaternary
1312333031233
5
Quinary
30441120134
6
Senary
3032315011
8
Octal
166771557
10
Decimal
31191919
12
Duodecimal
a542a67
16
Hexadecimal
1dbf36f
20
Vigesimal
9eijfj
36
Base36
ikju7
md5
1c247d2826e1bb44455715236d6b3313
sha1
968caf0140fe8175322d67e05df74be9e84e0a58
sha256
80de78fe777731c7a909d6ff3330847954b22a6e236ae0756667e6dc68c99ccc
sha512
4dabc206c18f304c829c95339d4940e67b9ffeef868b4d3db85b4ab6bb2c511de43bc70fd38cfbf7cb90cbea2a722cee2995e2e83df7a182ec4a80f3fd6c9500
ripemd-160
6afd270de86dab4f10ae155b35d823b06adb844c
Diameter
62383838
Circumference
195984607.16354
Area
3.0565679959459E+15
Volume
1.2712029513005E+23
Surface area
1.2226271983784E+16
Circumference
195984607.16354
Perimeter
124767676
Area
972935810902561
Diagonal
44112034.886243
Surface area
5837614865415366
Volume
3.0347735005872E+22
Space diagonal
54025988.493573
Perimeter
93575757
Area
4.2129356424662E+14
Altitude
27012994.246787
Surface area
4.2129356424662E+14
Volume
3.5765148693841E+21
Height
14704011.628748