42156978 is an even 8-digits composite number following 42156977
and preceding 42156979 . In scientific notation, it is written as 4.2156978 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 13821840 positive integers (up to 42156978) that are relatively prime to 42156978.
42156978 has 16 divisors, whose sum is 85696896
The reverse of 42156978 is 87965124
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
forty-two million one hundred fifty-six thousand nine hundred seventy-eight
Scientific notation
4.2156978 × 10^7
Engineering notation
4.2156978 × 10^6
Prime Factorization
2 × 3 × 61 × 115183
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
42156978
Product of the distinct prime numbers
The prime factorization of 42156978 is 2 × 3 × 61 × 115183.
Since it has a total of 4 prime factors.
7 , 5 , 45 , 53 , 819 , 272 , 2942 , 5403 , 44932 , 9932 , 234296 , 229682 , 2513027 , 4779220 , 49999972 , 66889120 , 342842309 , 773860764 , 1814544642 , 3527903821
n×2
84313956
n×3
126470934
n×4
168627912
n×5
210784890
n÷2
21078489
n÷3
14052326
n÷3
10539244.5
n÷5
8431395.6
n2
1777210794092484
n3
7.4921836347919E+22
n4
3.1584782066388E+30
n5
1.3315189627075E+38
2 √n
6492.840518602
3 √n
348.03518933364
4 √n
80.578164030971
5 √n
33.494530473799
1 , 2 , 3 , 6 , 61 , 122 , 183 , 366 , 115183 , 230366 , 345549 , 691098 , 7026163 , 14052326 , 21078489 , 42156978
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-42156977
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 42156978 can be divided by 16 positive divisors.
The sum of these divisors (counting 42156978) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10100000110100001110110010
3
Ternary
2221022210111120
4
Quaternary
2200310032302
5
Quinary
41243010403
6
Senary
4103323110
8
Octal
240641662
10
Decimal
42156978
12
Duodecimal
12150496
16
Hexadecimal
28343b2
20
Vigesimal
d39c8i
36
Base36
p3kj6
md5
87bc1f2405d4004d5fe0b6e828c987ca
sha1
bf517766029633988994ec179310298ddf39a608
sha256
140e0471c0774d338c67a24a9675ccc76758f7f383227f8d1578c1c8ef53f1f0
sha512
ec7ea99218d48ae2ac503d99293dad0e5c31083515781a1c02e1278ef02f184e35c277bf4023c0ee451f7bda79bfcf8ffcbad630d4db52b0da700a63b8a7e409
ripemd-160
6f466f7b4094870e522650a337e61596f174d07c
Diameter
84313956
Circumference
264880104.76469
Area
5.5832723746014E+15
Volume
3.1383185421877E+23
Surface area
2.2333089498406E+16
Circumference
264880104.76469
Perimeter
168627912
Area
1777210794092484
Diagonal
59618970.036264
Surface area
10663264764554904
Volume
7.4921836347919E+22
Space diagonal
73018027.789563
Perimeter
126470934
Area
7.69554847782E+14
Altitude
36509013.894782
Surface area
7.69554847782E+14
Volume
8.8296230900938E+21
Height
19872990.012088