31488021 is an odd 8-digits composite number following 31488020
and preceding 31488022 . In scientific notation, it is written as 3.1488021 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 20843136 positive integers (up to 31488021) that are relatively prime to 31488021.
31488021 has 16 divisors, whose sum is 43848000
The reverse of 31488021 is 12088413
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
thirty-one million four hundred eighty-eight thousand twenty-one
Scientific notation
3.1488021 × 10^7
Engineering notation
3.1488021 × 10^6
Prime Factorization
3 × 27 × 149 × 2609
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
31488021
Product of the distinct prime numbers
The prime factorization of 31488021 is 3 × 27 × 149 × 2609.
Since it has a total of 4 prime factors.
10 , 3 , 56 , 34 , 703 , 96 , 7564 , 9318 , 36429 , 50339 , 899841 , 562676 , 9704953 , 5531855 , 32730246 , 89755945 , 860673009 , 521110148 , 3965074185 , 2063581783
n×2
62976042
n×3
94464063
n×4
125952084
n×5
157440105
n÷2
15744010.5
n÷3
10496007
n÷3
7872005.25
n÷5
6297604.2
n2
991495466496441
n3
3.1220230070445E+22
n4
9.83063260083E+29
n5
3.0954716577822E+37
2 √n
5611.4188045449
3 √n
315.77794111831
4 √n
74.909403979373
5 √n
31.595779424315
1 , 3 , 27 , 81 , 149 , 447 , 2609 , 4023 , 7827 , 12069 , 70443 , 211329 , 388741 , 1166223 , 10496007 , 31488021
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
-31488020
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 31488021 can be divided by 16 positive divisors.
The sum of these divisors (counting 31488021) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1111000000111100000010101
3
Ternary
2012020202110000
4
Quaternary
1320013200111
5
Quinary
31030104041
6
Senary
3042521513
8
Octal
170074025
10
Decimal
31488021
12
Duodecimal
a666299
16
Hexadecimal
1e07815
20
Vigesimal
9gg011
36
Base36
iqwb9
md5
6193d71d809391933fc6b83274668b43
sha1
02f4f66ac44f4949f8fcc5e209de3c41206f8245
sha256
506a0f81ceb0a17b32ff51d932981059727cf530350d93802e189caea9d9be56
sha512
b425651e96260509504458e400ac8683ab8f68dafcb72a0387aa3e56042f9fbe029b4678d8c0157508e2f21fcfa8bddaed1b59f09b52d67c4f39a8fb366368cd
ripemd-160
5391b49cc8e4b7765821a58a095c424a5770b105
Diameter
62976042
Circumference
197845070.89936
Area
3.1148748736128E+15
Volume
1.3077499391026E+23
Surface area
1.2459499494451E+16
Circumference
197845070.89936
Perimeter
125952084
Area
991495466496441
Diagonal
44530786.350489
Surface area
5948972798978646
Volume
3.1220230070445E+22
Space diagonal
54538852.201796
Perimeter
94464063
Area
4.2933013086151E+14
Altitude
27269426.100898
Surface area
4.2933013086151E+14
Volume
3.6793393988359E+21
Height
14843595.450163