18870131 is an odd 8-digits composite number following 18870130
and preceding 18870132 . In scientific notation, it is written as 1.8870131 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 16174392 positive integers (up to 18870131) that are relatively prime to 18870131.
18870131 has 4 divisors, whose sum is 21565872
The reverse of 18870131 is 13107881
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighteen million eight hundred seventy thousand one hundred thirty-one
Scientific notation
1.8870131 × 10^7
Engineering notation
1.8870131 × 10^6
Prime Factorization
7 × 2695733
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18870131
Product of the distinct prime numbers
The prime factorization of 18870131 is 7 × 2695733.
Since it has a total of 2 prime factors.
6 , 2 , 42 , 51 , 249 , 73 , 3560 , 1899 , 71494 , 72664 , 968713 , 811627 , 5252020 , 3507246 , 51018840 , 51744132 , 789210480 , 104163468 , 6455173388 , 2306487034
n×2
37740262
n×3
56610393
n×4
75480524
n×5
94350655
n÷2
9435065.5
n÷3
6290043.6666667
n÷3
4717532.75
n÷5
3774026.2
n2
356081843957161
n3
6.7193110421932E+21
n4
1.2679427959593E+29
n5
2.3926246660259E+36
2 √n
4343.9764041716
3 √n
266.23080482011
4 √n
65.908849209887
5 √n
28.520358680194
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18870130
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18870131 can be divided by 4 positive divisors.
The sum of these divisors (counting 18870131) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111111110111101110011
3
Ternary
1022111200221202
4
Quaternary
1013332331303
5
Quinary
14312321011
6
Senary
1512241415
8
Octal
107767563
10
Decimal
18870131
12
Duodecimal
63a026b
16
Hexadecimal
11fef73
20
Vigesimal
5hif6b
36
Base36
b8gab
md5
81e9f0f12da4886859451b2ddaea8d3f
sha1
5cae764aed1198a7c4e1a56ccae3f58b35f25a74
sha256
ea2289da32e78ce5f8a032c6a5e6b2ad0097cc09b7cb826d97932c0f0855d9fe
sha512
5fc2d9cb08b20409fe22d09539564a9d6398299c1a562c9531554e0520eb0e5827647b7144ef8265bf0340fa16c7c08fb03f5921d52d4b2dede2e30431457c30
ripemd-160
3ef5dfe4c5324c26249c1eb07189694f7a9f4ac4
Diameter
37740262
Circumference
118564529.84375
Area
1.1186641050525E+15
Volume
2.8145784276452E+22
Surface area
4.4746564202101E+15
Circumference
118564529.84375
Perimeter
75480524
Area
356081843957161
Diagonal
26686395.183957
Surface area
2136491063742966
Volume
6.7193110421932E+21
Space diagonal
32684025.637481
Perimeter
56610393
Area
1.5418796134665E+14
Altitude
16342012.81874
Surface area
1.5418796134665E+14
Volume
7.9187840047274E+20
Height
8895465.061319