19701978 is an even 8-digits composite number following 19701977
and preceding 19701979 . In scientific notation, it is written as 1.9701978 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 6567324 positive integers (up to 19701978) that are relatively prime to 19701978.
19701978 has 8 divisors, whose sum is 39403968
The reverse of 19701978 is 87910791
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
nineteen million seven hundred one thousand nine hundred seventy-eight
Scientific notation
1.9701978 × 10^7
Engineering notation
1.9701978 × 10^6
Prime Factorization
2 × 3 × 3283663
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19701978
Product of the distinct prime numbers
The prime factorization of 19701978 is 2 × 3 × 3283663.
Since it has a total of 3 prime factors.
8 , 5 , 45 , 71 , 376 , 486 , 420 , 1755 , 97976 , 37651 , 453470 , 121905 , 3206384 , 4394490 , 62442759 , 87376174 , 280054673 , 910479969 , 4545077388 , 5528165513
n×2
39403956
n×3
59105934
n×4
78807912
n×5
98509890
n÷2
9850989
n÷3
6567326
n÷3
4925494.5
n÷5
3940395.6
n2
388167937112484
n3
7.6476761572955E+21
n4
1.5067434740216E+29
n5
2.9685826776817E+36
2 √n
4438.6910232635
3 √n
270.08674853154
4 √n
66.623502033918
5 √n
28.767489679269
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
-19701977
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 19701978 can be divided by 8 positive divisors.
The sum of these divisors (counting 19701978) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001011001010000011011010
3
Ternary
1101001222000220
4
Quaternary
1023022003122
5
Quinary
20020430403
6
Senary
1542140510
8
Octal
113120332
10
Decimal
19701978
12
Duodecimal
6721736
16
Hexadecimal
12ca0da
20
Vigesimal
632eii
36
Base36
bqa56
md5
2090e219097ea73c47142d48dbe5b100
sha1
b4506909eb88321802373b493d4efb9cdad39822
sha256
c8f8a575f75cbcd50ec04f49b1a829a6c5aaea073d3a13b472c6ed1030ddb9eb
sha512
0da9d9d6e1ba6d8684fd3b0ff2fa273470aecc41c4fb731c86882523d9c168fc2805051fbc73b20c25e7bc0e2b0dd89ac3dad6198ecee9d1009604d89081d229
ripemd-160
ab2a5e16eed2bfdc3e9210f78c0f7a2ac15b1590
Diameter
39403956
Circumference
123791178.69198
Area
1.2194655395917E+15
Volume
3.2034510977058E+22
Surface area
4.8778621583667E+15
Circumference
123791178.69198
Perimeter
78807912
Area
388167937112484
Diagonal
27862804.493176
Surface area
2329007622674904
Volume
7.6476761572955E+21
Space diagonal
34124826.905604
Perimeter
59105934
Area
1.6808164723701E+14
Altitude
17062413.452802
Surface area
1.6808164723701E+14
Volume
9.0128727852373E+20
Height
9287601.4977254