31126988 is an even 8-digits composite number following 31126987
and preceding 31126989 . In scientific notation, it is written as 3.1126988 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 15409200 positive integers (up to 31126988) that are relatively prime to 31126988.
31126988 has 12 divisors, whose sum is 55012272
The reverse of 31126988 is 88962113
Previous prime number is 101
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
thirty-one million one hundred twenty-six thousand nine hundred eighty-eight
Scientific notation
3.1126988 × 10^7
Engineering notation
3.1126988 × 10^6
Prime Factorization
2 × 2 × 101 × 77047
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
15563494
Product of the distinct prime numbers
The prime factorization of 31126988 is 2 × 2 × 101 × 77047.
Since it has a total of 4 prime factors.
5 , 2 , 39 , 60 , 660 , 811 , 8415 , 3008 , 42071 , 17653 , 797935 , 981252 , 8487636 , 9094501 , 52648703 , 74036859 , 211859444 , 169424138 , 5028802807 , 6644876075
n×2
62253976
n×3
93380964
n×4
124507952
n×5
155634940
n÷2
15563494
n÷3
10375662.666667
n÷3
7781747
n÷5
6225397.6
n2
968889381952144
n3
3.0158608165352E+22
n4
9.3874663445961E+29
n5
2.9220355225865E+37
2 √n
5579.1565670807
3 √n
314.56642456764
4 √n
74.693751861054
5 √n
31.522991120399
1 , 2 , 4 , 101 , 202 , 404 , 77047 , 154094 , 308188 , 7781747 , 15563494 , 31126988
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31126987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31126988 can be divided by 12 positive divisors.
The sum of these divisors (counting 31126988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110110101111010111001100
3
Ternary
2011120102012102
4
Quaternary
1312233113030
5
Quinary
30432030423
6
Senary
3031054232
8
Octal
166572714
10
Decimal
31126988
12
Duodecimal
a511378
16
Hexadecimal
1daf5cc
20
Vigesimal
9eah98
36
Base36
ij5qk
md5
f02357d7868f661156b05d5cdefcd0f2
sha1
d69fc47dc076c91cfcaef473fbcf2703fb328755
sha256
690d9f81c2f5ee24bc8e7b5a2e7815660bbb2a33d43409ec8f1a0ca3ba9787c2
sha512
9c6f6aa3790b8fe9b9281d8d11bb27bbaf88cb0c24ec42584b495b15b08de8862c52f44a592599eb519e78e6482a6bfa48a476b4dd83952f2d2adce330af7272
ripemd-160
0694e4f1a9bd6d1d400dd2f59bd3d2e246e83309
Diameter
62253976
Circumference
195576633.65836
Area
3.043855764482E+15
Volume
1.2632808247302E+23
Surface area
1.2175423057928E+16
Circumference
195576633.65836
Perimeter
124507952
Area
968889381952144
Diagonal
44020208.585425
Surface area
5813336291712864
Volume
3.0158608165352E+22
Space diagonal
53913524.702587
Perimeter
93380964
Area
4.1954140911378E+14
Altitude
26956762.351293
Surface area
4.1954140911378E+14
Volume
3.554226057478E+21
Height
14673402.861808