31128 is an even 5-digits composite number following 31127
and preceding 31129 . In scientific notation, it is written as 3.1128 × 10^4.
The sum of its digits is 15. It has a total of 5 prime factors and 16 positive divisors.
There are 10368 positive integers (up to 31128) that are relatively prime to 31128.
31128 has 16 divisors, whose sum is 77880
The reverse of 31128 is 82113
Previous prime number is 3
Is Prime? no
Number parity even
Number length 5
Sum of Digits 15
Digital Root 6
Name
thirty-one thousand one hundred twenty-eight
Scientific notation
3.1128 × 10^4
Engineering notation
3.1128 × 10^3
Prime Factorization
2 × 2 × 2 × 3 × 1297
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
7782
Product of the distinct prime numbers
The prime factorization of 31128 is 2 × 2 × 2 × 3 × 1297.
Since it has a total of 5 prime factors.
8 , 7 , 12 , 92 , 445 , 227 , 4762 , 7340 , 83231 , 42016 , 922 , 258406 , 6538679 , 9543273 , 75610119 , 27899696 , 615551532 , 800886209 , 930689050 , 2405718854
n×2
62256
n×3
93384
n×4
124512
n×5
155640
n÷2
15564
n÷3
10376
n÷3
7782
n÷5
6225.6
n2
968952384
n3
30161549809152
n4
938868722459283456
n5
2.9225105592713E+22
2 √n
176.43128974193
3 √n
31.456983358976
4 √n
13.282744059189
5 √n
7.9182688543074
1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 1297 , 2594 , 3891 , 5188 , 7782 , 10376 , 15564 , 31128
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
-31127
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 31128 can be divided by 16 positive divisors.
The sum of these divisors (counting 31128) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100110011000
3
Ternary
1120200220
4
Quaternary
13212120
5
Quinary
1444003
6
Senary
400040
8
Octal
74630
10
Decimal
31128
12
Duodecimal
16020
16
Hexadecimal
7998
20
Vigesimal
3hg8
36
Base36
o0o
md5
e348c1b446fae14bfcf5ae20ee4c23f0
sha1
2137f13e7fc307e4d2a470bc152b9e04b9282f9a
sha256
04f7ad119b31265ba80f37bda2de3aa9f5b17c0ec06ec669325f140366bf0779
sha512
8aa42610ff4d8c7e60f11d57dbe69b3e361c876ca308fac6adeb44c448a918335df08dbe748ecdd426f27c33850585ae582027b16582a40c2e8c5a9424aa8360
ripemd-160
7c6ef9cda5a42a44c47bc68df5c8be66caeae0c3
Diameter
62256
Circumference
195582.99224189
Area
3044053691.2527
Volume
1.2634040440175E+14
Surface area
12176214765.011
Circumference
195582.99224189
Perimeter
124512
Area
968952384
Diagonal
44021.63976955
Surface area
5813714304
Volume
30161549809152
Space diagonal
53915.277538004
Perimeter
93384
Area
419568689.80075
Altitude
26957.638769002
Surface area
419568689.80075
Volume
3554572733524.5
Height
14673.879923183