18989907 is an odd 8-digits composite number following 18989906
and preceding 18989908 . In scientific notation, it is written as 1.8989907 × 10^7.
The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors.
There are 12609000 positive integers (up to 18989907) that are relatively prime to 18989907.
18989907 has 8 divisors, whose sum is 25421760
The reverse of 18989907 is 70998981
Previous prime number is 251
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
eighteen million nine hundred eighty-nine thousand nine hundred seven
Scientific notation
1.8989907 × 10^7
Engineering notation
1.8989907 × 10^6
Prime Factorization
3 × 251 × 25219
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18989907
Product of the distinct prime numbers
The prime factorization of 18989907 is 3 × 251 × 25219.
Since it has a total of 3 prime factors.
1 , 2 , 42 , 100 , 14 , 654 , 1846 , 2753 , 91633 , 54166 , 466058 , 550692 , 8230524 , 1081395 , 15399091 , 96307706 , 844048486 , 767521278 , 521044427 , 5662520906
n×2
37979814
n×3
56969721
n×4
75959628
n×5
94949535
n÷2
9494953.5
n÷3
6329969
n÷3
4747476.75
n÷5
3797981.4
n2
360616567868649
n3
6.8480750864848E+21
n4
1.3004430902136E+29
n5
2.469529334195E+36
2 √n
4357.7410432471
3 √n
266.79290706845
4 √n
66.013188403887
5 √n
28.556473046971
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
-18989906
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 18989907 can be divided by 8 positive divisors.
The sum of these divisors (counting 18989907) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011100001101010011
3
Ternary
1022201210020220
4
Quaternary
1020130031103
5
Quinary
14330134112
6
Senary
1515004123
8
Octal
110341523
10
Decimal
18989907
12
Duodecimal
6439643
16
Hexadecimal
121c353
20
Vigesimal
5idef7
36
Base36
bb0pf
md5
b713345a2fedfd0321d45648828f3558
sha1
e6304227c65ca05ed94147dcd87feabeacd5e8a8
sha256
b08b2d9bccb3ea0805eadcfaef5cce7a5dc40f80c025223b292498ff2f587963
sha512
ac5c31c16fbc1ff02535407de9e77ea481d9abac5a57c35d9b315d6fb91a569f0557ae45f313f050fcbb42ab913ed72729f2b7d3741f5c70d5a6da49987578bf
ripemd-160
a78a5e99c733607047ae142bfb5e08dcd8fb249e
Diameter
37979814
Circumference
119317104.64711
Area
1.1329103603789E+15
Volume
2.8685149843909E+22
Surface area
4.5316414415157E+15
Circumference
119317104.64711
Perimeter
75959628
Area
360616567868649
Diagonal
26855784.027604
Surface area
2163699407211894
Volume
6.8480750864848E+21
Space diagonal
32891483.755008
Perimeter
56969721
Area
1.561515543999E+14
Altitude
16445741.877504
Surface area
1.561515543999E+14
Volume
8.0705338862135E+20
Height
8951928.0092013