18989910 is an even 8-digits composite number following 18989909
and preceding 18989911 . In scientific notation, it is written as 1.8989910 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors.
There are 4976640 positive integers (up to 18989910) that are relatively prime to 18989910.
18989910 has 32 divisors, whose sum is 36060192
The reverse of 18989910 is 01998981
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighteen million nine hundred eighty-nine thousand nine hundred ten
Scientific notation
1.8989910 × 10^7
Engineering notation
1.8989910 × 10^6
Prime Factorization
2 × 5 × 27 × 61 × 1153
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
18989910
Product of the distinct prime numbers
The prime factorization of 18989910 is 2 × 5 × 27 × 61 × 1153.
Since it has a total of 5 prime factors.
4 , 7 , 1 , 70 , 316 , 888 , 7240 , 5582 , 9995 , 64475 , 520998 , 341132 , 8639672 , 7529235 , 93027405 , 68574871 , 332495688 , 299989900 , 8991087710 , 8237102931
n×2
37979820
n×3
56969730
n×4
75959640
n×5
94949550
n÷2
9494955
n÷3
6329970
n÷3
4747477.5
n÷5
3797982
n2
360616681808100
n3
6.8480783320345E+21
n4
1.3004439119828E+29
n5
2.4695312848602E+36
2 √n
4357.7413874621
3 √n
266.79292111765
4 √n
66.013191011055
5 √n
28.556473949234
1 , 2 , 5 , 10 , 27 , 54 , 61 , 122 , 135 , 270 , 305 , 610 , 1153 , 1647 , 2306 , 3294 , 5765 , 8235 , 11530 , 16470 , 31131 , 62262 , 70333 , 140666 , 155655 , 311310 , 351665 , 703330 , 1898991 , 3797982 , 9494955 , 18989910
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18989909
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18989910 can be divided by 32 positive divisors.
The sum of these divisors (counting 18989910) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001000011100001101010110
3
Ternary
1022201210021000
4
Quaternary
1020130031112
5
Quinary
14330134120
6
Senary
1515004130
8
Octal
110341526
10
Decimal
18989910
12
Duodecimal
6439646
16
Hexadecimal
121c356
20
Vigesimal
5idefa
36
Base36
bb0pi
md5
b69b7e4a2498cee1f996bdd7545a16ca
sha1
0cd70b6542a4e2a0dd0b7d4e301ed9f20d9e2f9e
sha256
0db78de235be18ba558f66acc7e72fef909b511462cef4a62cec7f6cde7ea43e
sha512
82ea8247ea94a41f79be3beca55ebeda6679d622b8ea55f0c3856d3fa762acae4470042ba435bcb3ce98890e3c50a722b6042e34b5d8b2dd5d8dc6efb43a5423
ripemd-160
a711642d363747bd499fe6ca81ed5c6c808464be
Diameter
37979820
Circumference
119317123.49666
Area
1.1329107183303E+15
Volume
2.8685163438836E+22
Surface area
4.531642873321E+15
Circumference
119317123.49666
Perimeter
75959640
Area
360616681808100
Diagonal
26855788.270244
Surface area
2163700090848600
Volume
6.8480783320345E+21
Space diagonal
32891488.95116
Perimeter
56969730
Area
1.5615160373713E+14
Altitude
16445744.47558
Surface area
1.5615160373713E+14
Volume
8.0705377111304E+20
Height
8951929.4234148