18778972 is an even 8-digits composite number following 18778971
and preceding 18778973 . In scientific notation, it is written as 1.8778972 × 10^7.
The sum of its digits is 49. It has a total of 4 prime factors and 12 positive divisors.
There are 9235440 positive integers (up to 18778972) that are relatively prime to 18778972.
18778972 has 12 divisors, whose sum is 33402376
The reverse of 18778972 is 27987781
Previous prime number is 61
Is Prime? no Number parity even Number length 8 Sum of Digits 49 Digital Root 4
Name
eighteen million seven hundred seventy-eight thousand nine hundred seventy-two
Scientific notation
1.8778972 × 10^7
Engineering notation
1.8778972 × 10^6
Prime Factorization
2 × 2 × 61 × 76963
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
9389486 Product of the distinct prime numbers
The prime factorization of 18778972 is 2 × 2 × 61 × 76963.
Since it has a total of 4 prime factors.
5 , 1 , 35 , 53 , 145 , 719 , 8967 , 864 , 82451 , 98258 , 603959 , 144291 , 6121883 , 6019437 , 39792360 , 48788006 , 658605814 , 947169051 , 3775442505 , 4051434464
n×2
37557944
n×3
56336916
n×4
75115888
n×5
93894860
n÷2
9389486
n÷3
6259657.3333333
n÷3
4694743
n÷5
3755794.4
n2
352649789376784
n3
6.6224005205125E+21
n4
1.2436187394749E+29
n5
2.3353881487274E+36
2 √n4333.4711260143
3 √n265.80140451967
4 √n65.829105462662
5 √n28.492749694681
1 , 2 , 4 , 61 , 122 , 244 , 76963 , 153926 , 307852 , 4694743 , 9389486 , 18778972
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
-18778971 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 18778972 can be divided by 12 positive divisors.
The sum of these divisors (counting 18778972) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000111101000101101011100
3
Ternary
1022100001220111
4
Quaternary
1013220231130
5
Quinary
14301411342
6
Senary
1510255404
8
Octal
107505534
10
Decimal
18778972
12
Duodecimal
6357564
16
Hexadecimal
11e8b5c
20
Vigesimal
5h778c
36
Base36
b6hy4
md5
58478e77813414da5d9410a9bb1bac3d
sha1
225190ae5a3c3cfb1e02f7087c61de2a2dc2d63a
sha256
83b9e9bb9d6f0c06ee4e5ffea17b9917db0847e32a49b3cfa2671023eef45f56
sha512
8a94d09b045e65cd4e977ad8664d9b7dd69218b6b1c1275d1c7de7f9b585f96c09efaf43241955bdecf9633640512b70357601486d99d93bc783338cec202a08
ripemd-160
8351d0f0f20a3f0c841248a15e5d03e75c333371
Diameter
37557944
Circumference
117991760.95434
Area
1.1078819875961E+15
Volume
2.7739846432495E+22
Surface area
4.4315279503844E+15
Circumference
117991760.95434
Perimeter
75115888
Area
352649789376784
Diagonal
26557476.889825
Surface area
2115898736260704
Volume
6.6224005205125E+21
Space diagonal
32526133.617913
Perimeter
56336916
Area
1.5270183811976E+14
Altitude
16263066.808957
Surface area
1.5270183811976E+14
Volume
7.8045738596462E+20
Height
8852492.2966082