18878994 is an even 8-digits composite number following 18878993
and preceding 18878995 . In scientific notation, it is written as 1.8878994 × 10^7.
The sum of its digits is 54. It has a total of 3 prime factors and 8 positive divisors.
There are 6292944 positive integers (up to 18878994) that are relatively prime to 18878994.
18878994 has 8 divisors, whose sum is 28668348
The reverse of 18878994 is 49987881
Previous prime number is 81
Is Prime? no
Number parity even
Number length 8
Sum of Digits 54
Digital Root 9
Name
eighteen million eight hundred seventy-eight thousand nine hundred ninety-four
Scientific notation
1.8878994 × 10^7
Engineering notation
1.8878994 × 10^6
Prime Factorization
2 × 81 × 116537
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18878994
Product of the distinct prime numbers
The prime factorization of 18878994 is 2 × 81 × 116537.
Since it has a total of 3 prime factors.
8 , 7 , 66 , 58 , 424 , 483 , 8323 , 6372 , 54307 , 78542 , 346305 , 836187 , 908035 , 3383099 , 45235962 , 73891798 , 356682286 , 367559882 , 8281849930 , 6500702946
n×2
37757988
n×3
56636982
n×4
75515976
n×5
94394970
n÷2
9439497
n÷3
6292998
n÷3
4719748.5
n÷5
3775798.8
n2
356416414452036
n3
6.7287833499415E+21
n4
1.2703266049085E+29
n5
2.3982488352107E+36
2 √n
4344.9964326798
3 √n
266.27247975242
4 √n
65.916586931362
5 √n
28.523037288651
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18878993
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18878994 can be divided by 8 positive divisors.
The sum of these divisors (counting 18878994) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000000001001000010010
3
Ternary
1022112011010000
4
Quaternary
1020001020102
5
Quinary
14313111434
6
Senary
1512350430
8
Octal
110011022
10
Decimal
18878994
12
Duodecimal
63a5416
16
Hexadecimal
1201212
20
Vigesimal
5hjh9e
36
Base36
b8n4i
md5
980a1f5b6393828270905e720d5e3f0a
sha1
f00e584d5121582eb232d782e4a81d269cf5b8bf
sha256
2c6de0b65dc643ecd6dfbf12d3285ce0ecb20604c416da01915262e7be93d44c
sha512
4de0194ce02cd88b3574fe50e595ac7361f9fa420320c10a3958b117c40ff33e5313aa9ced642b43317a8978746637ea86d2e591ab0b1c69e01c03c8b05fb0bd
ripemd-160
940fdd804e2f1adc421ebdc325d03fa89e02ef61
Diameter
37757988
Circumference
118620217.71513
Area
1.1197151892613E+15
Volume
2.8185461786365E+22
Surface area
4.4788607570453E+15
Circumference
118620217.71513
Perimeter
75515976
Area
356416414452036
Diagonal
26698929.35876
Surface area
2138498486712216
Volume
6.7287833499415E+21
Space diagonal
32699376.803788
Perimeter
56636982
Area
1.5433283462061E+14
Altitude
16349688.401894
Surface area
1.5433283462061E+14
Volume
7.9299472264646E+20
Height
8899643.1195868