19972487 is an odd 8-digits composite number following 19972486
and preceding 19972488 . In scientific notation, it is written as 1.9972487 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 19104096 positive integers (up to 19972487) that are relatively prime to 19972487.
19972487 has 4 divisors, whose sum is 20840880
The reverse of 19972487 is 78427991
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
nineteen million nine hundred seventy-two thousand four hundred eighty-seven
Scientific notation
1.9972487 × 10^7
Engineering notation
1.9972487 × 10^6
Prime Factorization
23 × 868369
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19972487
Product of the distinct prime numbers
The prime factorization of 19972487 is 23 × 868369.
Since it has a total of 2 prime factors.
9 , 3 , 91 , 89 , 694 , 749 , 3778 , 1524 , 2127 , 19114 , 613298 , 160991 , 278795 , 4652265 , 75614933 , 61319429 , 250588497 , 130142089 , 9694252227 , 3172934876
n×2
39944974
n×3
59917461
n×4
79889948
n×5
99862435
n÷2
9986243.5
n÷3
6657495.6666667
n÷3
4993121.75
n÷5
3994497.4
n2
398900236965169
n3
7.9670297970838E+21
n4
1.5912139905087E+29
n5
3.1780500739653E+36
2 √n
4469.0588494671
3 √n
271.31723492048
4 √n
66.851019808729
5 √n
28.846055145739
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19972486
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19972487 can be divided by 4 positive divisors.
The sum of these divisors (counting 19972487) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100001100000110000111
3
Ternary
1101120201002202
4
Quaternary
1030030012013
5
Quinary
20103104422
6
Senary
1552025115
8
Octal
114140607
10
Decimal
19972487
12
Duodecimal
683219b
16
Hexadecimal
130c187
20
Vigesimal
64gb47
36
Base36
bw2vb
md5
3d29771d983b98225f36c57862a30b37
sha1
6b53641b5a6cc708dbdc3fb3e0c4456037024a38
sha256
a54b253e5b1be12276d04c6074283d8eb49a60f3694183fc611fdbc554cf691e
sha512
fbe484e72437f8b8c27b37f93b74f6919b2e8e20b2beb5261715af810b6a54887b268b6417ed066101b205893fba89f7d8a263c2835f4f1ca8fcf54342621a57
ripemd-160
4b82cca721b640916d01c7ded89cf9f49afd4720
Diameter
39944974
Circumference
125490836.86624
Area
1.253182053965E+15
Volume
3.3372216375266E+22
Surface area
5.01272821586E+15
Circumference
125490836.86624
Perimeter
79889948
Area
398900236965169
Diagonal
28245361.98972
Surface area
2393401421791014
Volume
7.9670297970838E+21
Space diagonal
34593362.237509
Perimeter
59917461
Area
1.7272886939373E+14
Altitude
17296681.118754
Surface area
1.7272886939373E+14
Volume
9.3892346590553E+20
Height
9415120.6632401