31006881 is an odd 8-digits composite number following 31006880
and preceding 31006882 . In scientific notation, it is written as 3.1006881 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 20671200 positive integers (up to 31006881) that are relatively prime to 31006881.
31006881 has 8 divisors, whose sum is 42873824
The reverse of 31006881 is 18860013
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
thirty-one million six thousand eight hundred eighty-one
Scientific notation
3.1006881 × 10^7
Engineering notation
3.1006881 × 10^6
Prime Factorization
27 × 3 × 382801
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
31006881
Product of the distinct prime numbers
The prime factorization of 31006881 is 27 × 3 × 382801.
Since it has a total of 3 prime factors.
1 , 10 , 94 , 27 , 408 , 122 , 4057 , 9562 , 91244 , 18003 , 150212 , 335590 , 2816065 , 1822491 , 22132428 , 82573916 , 743811811 , 349839529 , 201901385 , 8348298634
n×2
62013762
n×3
93020643
n×4
124027524
n×5
155034405
n÷2
15503440.5
n÷3
10335627
n÷3
7751720.25
n÷5
6201376.2
n2
961426669348161
n3
2.9810842326705E+22
n4
9.243412405339E+29
n5
2.8660938848627E+37
2 √n
5568.3822605852
3 √n
314.16130635863
4 √n
74.621593795531
5 √n
31.49862648128
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
-31006880
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 31006881 can be divided by 8 positive divisors.
The sum of these divisors (counting 31006881) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110010010000010100001
3
Ternary
2011100022110000
4
Quaternary
1312102002201
5
Quinary
30414210011
6
Senary
3024330213
8
Octal
166220241
10
Decimal
31006881
12
Duodecimal
a473969
16
Hexadecimal
1d920a1
20
Vigesimal
9dfh41
36
Base36
igl29
md5
36b3701d88b143d090071fd3663c39e1
sha1
34c6acd77d825b806a0777cc46ca48586859423a
sha256
e528c86a48df496badfc02f9467900cc191da32aa8cc36b0f87a7c091e939293
sha512
a8aab0576ccae8f21583ba4ffc6a52420c386c5137d248900d4dc23b440957c967c3483c0cec6be2bab73efa7dc129eca737ddc5f23dc3acab85df995fcfc558
ripemd-160
923c86ee0e8abb117edda22f6f4ceafccfb4e5c2
Diameter
62013762
Circumference
194821979.12067
Area
3.0204109613895E+15
Volume
1.2487136433453E+23
Surface area
1.2081643845558E+16
Circumference
194821979.12067
Perimeter
124027524
Area
961426669348161
Diagonal
43850351.637089
Surface area
5768560016088966
Volume
2.9810842326705E+22
Space diagonal
53705493.276242
Perimeter
93020643
Area
4.1630995976568E+14
Altitude
26852746.638121
Surface area
4.1630995976568E+14
Volume
3.5132414603493E+21
Height
14616783.87903