19913815 is an odd 8-digits composite number following 19913814
and preceding 19913816 . In scientific notation, it is written as 1.9913815 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 15931048 positive integers (up to 19913815) that are relatively prime to 19913815.
19913815 has 4 divisors, whose sum is 23896584
The reverse of 19913815 is 51831991
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
nineteen million nine hundred thirteen thousand eight hundred fifteen
Scientific notation
1.9913815 × 10^7
Engineering notation
1.9913815 × 10^6
Prime Factorization
5 × 3982763
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19913815
Product of the distinct prime numbers
The prime factorization of 19913815 is 5 × 3982763.
Since it has a total of 2 prime factors.
9 , 4 , 34 , 42 , 656 , 733 , 2302 , 9500 , 47559 , 76216 , 476510 , 554920 , 7382654 , 8482796 , 49276787 , 11863052 , 681655171 , 144391250 , 4079332583 , 2893911804
n×2
39827630
n×3
59741445
n×4
79655260
n×5
99569075
n÷2
9956907.5
n÷3
6637938.3333333
n÷3
4978453.75
n÷5
3982763
n2
396560027854225
n3
7.8970230310839E+21
n4
1.5725985569174E+29
n5
3.1316436731721E+36
2 √n
4462.4897758987
3 √n
271.0512967805
4 √n
66.801869553918
5 √n
28.829087324044
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
-19913814
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 19913815 can be divided by 4 positive divisors.
The sum of these divisors (counting 19913815) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001011111101110001010111
3
Ternary
1101110201121201
4
Quaternary
1023331301113
5
Quinary
20044220230
6
Senary
1550453331
8
Octal
113756127
10
Decimal
19913815
12
Duodecimal
6804247
16
Hexadecimal
12fdc57
20
Vigesimal
6494af
36
Base36
butlj
md5
d4bdc22c6fbbdd278105924f5f60ea46
sha1
cf964a47fe010b282dd6f9d5e9c1afca0bf58fbd
sha256
6ce3ba8edf28c8b83372b4f0ec2a8d077986fc4d2a890d62a0dea0ce45d40486
sha512
51196c209da25db3e26c3325a2d968a138e8fdb5be19bc1d70de1c49460c6824f617867d93afb472d3161959f24547bcbe5d418e098c06f7d4df7ae8252b4b4e
ripemd-160
5aa48b5c2fbb4f88166a4aa798229e665d2b67da
Diameter
39827630
Circumference
125122189.81789
Area
1.2458300702142E+15
Volume
3.3078972719577E+22
Surface area
4.9833202808568E+15
Circumference
125122189.81789
Perimeter
79655260
Area
396560027854225
Diagonal
28162387.251589
Surface area
2379360167125350
Volume
7.8970230310839E+21
Space diagonal
34491739.352527
Perimeter
59741445
Area
1.7171552912361E+14
Altitude
17245869.676264
Surface area
1.7171552912361E+14
Volume
9.3067308941096E+20
Height
9387462.4171963