18442947 is an odd 8-digits composite number following 18442946
and preceding 18442948 . In scientific notation, it is written as 1.8442947 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 12216672 positive integers (up to 18442947) that are relatively prime to 18442947.
18442947 has 8 divisors, whose sum is 24747856
The reverse of 18442947 is 74924481
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighteen million four hundred forty-two thousand nine hundred forty-seven
Scientific notation
1.8442947 × 10^7
Engineering notation
1.8442947 × 10^6
Prime Factorization
3 × 157 × 39157
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18442947
Product of the distinct prime numbers
The prime factorization of 18442947 is 3 × 157 × 39157.
Since it has a total of 3 prime factors.
8 , 10 , 90 , 65 , 989 , 635 , 4291 , 6764 , 44544 , 21203 , 544022 , 104800 , 9927354 , 5383691 , 65309180 , 87045277 , 920527640 , 842247053 , 9002651777 , 4585569929
n×2
36885894
n×3
55328841
n×4
73771788
n×5
92214735
n÷2
9221473.5
n÷3
6147649
n÷3
4610736.75
n÷5
3688589.4
n2
340142294044809
n3
6.2732263015268E+21
n4
1.1569678019807E+29
n5
2.1337895852636E+36
2 √n
4294.5252356925
3 √n
264.20646440818
4 √n
65.532627260721
5 √n
28.3900438712
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
-18442946
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 18442947 can be divided by 8 positive divisors.
The sum of these divisors (counting 18442947) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110010110101011000011
3
Ternary
1021200222222010
4
Quaternary
1012112223003
5
Quinary
14210133242
6
Senary
1455144003
8
Octal
106265303
10
Decimal
18442947
12
Duodecimal
6215003
16
Hexadecimal
1196ac3
20
Vigesimal
5f5777
36
Base36
azao3
md5
05ee62a057c447129bb451ff7d99ca43
sha1
ead28222efeef129b0d420a7e70630b2555978fd
sha256
1bf843944d58d648abe873d454c3a81e230377abd888ffc16511dfec25732a23
sha512
9c1e250716703517cc9fffe0e5ad698a9904b5275f756c37ffac7f5139d511b2eade8a1ae93db7ebe4decfb718ddeb4657b11c49a60ebb9bfadcf5d463df4b68
ripemd-160
e4263a9b4c582d0910b80ef4a013c4ccb0ad0c95
Diameter
36885894
Circumference
115880453.61149
Area
1.0685885321464E+15
Volume
2.6277228884244E+22
Surface area
4.2743541285854E+15
Circumference
115880453.61149
Perimeter
73771788
Area
340142294044809
Diagonal
26082265.777528
Surface area
2040853764268854
Volume
6.2732263015268E+21
Space diagonal
31944121.2453
Perimeter
55328841
Area
1.4728593377216E+14
Altitude
15972060.62265
Surface area
1.4728593377216E+14
Volume
7.3930680962124E+20
Height
8694088.5925094