42687978 is an even 8-digits composite number following 42687977
and preceding 42687979 . In scientific notation, it is written as 4.2687978 × 10^7.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 14016816 positive integers (up to 42687978) that are relatively prime to 42687978.
42687978 has 16 divisors, whose sum is 86651040
The reverse of 42687978 is 87978624
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 51
Digital Root 6
Name
forty-two million six hundred eighty-seven thousand nine hundred seventy-eight
Scientific notation
4.2687978 × 10^7
Engineering notation
4.2687978 × 10^6
Prime Factorization
2 × 3 × 67 × 106189
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
42687978
Product of the distinct prime numbers
The prime factorization of 42687978 is 2 × 3 × 67 × 106189.
Since it has a total of 4 prime factors.
1 , 1 , 2 , 3 , 661 , 273 , 7216 , 8048 , 67273 , 63908 , 508593 , 531429 , 9730744 , 5204776 , 77039987 , 82317633 , 271484174 , 415540044 , 2859585295 , 1464376994
n×2
85375956
n×3
128063934
n×4
170751912
n×5
213439890
n÷2
21343989
n÷3
14229326
n÷3
10671994.5
n÷5
8537595.6
n2
1822263465728484
n3
7.7788742735221E+22
n4
3.3206441385288E+30
n5
1.4175158393135E+38
2 √n
6533.603752907
3 √n
349.49035484976
4 √n
80.830710456527
5 √n
33.578486480372
1 , 2 , 3 , 6 , 67 , 134 , 201 , 402 , 106189 , 212378 , 318567 , 637134 , 7114663 , 14229326 , 21343989 , 42687978
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
-42687977
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 42687978 can be divided by 16 positive divisors.
The sum of these divisors (counting 42687978) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10100010110101110111101010
3
Ternary
2222022202220020
4
Quaternary
2202311313222
5
Quinary
41412003403
6
Senary
4122541310
8
Octal
242656752
10
Decimal
42687978
12
Duodecimal
12367836
16
Hexadecimal
28b5dea
20
Vigesimal
d6fjii
36
Base36
pey96
md5
37e47ea27b48a9b65ff25a7375125c15
sha1
22432a7889e07f2c6ea0becb6c7e690f0037e8dd
sha256
aeb3ac274860eb0606e7a840e2073e5ee306de2e33a7d67305fdbb5443d37a73
sha512
72289c870c4302fec86121ab8c4ce2b9cbab7dfb86412b90f68b49a4e3b2260457112f72af91dd4922ea6807fc6decc139b184a69650e4c00e0e9ea878816186
ripemd-160
849849de2a60e649efc30c8f2dd9c593499fe6ad
Diameter
85375956
Circumference
268216476.16281
Area
5.7248095168377E+15
Volume
3.2584072361194E+23
Surface area
2.2899238067351E+16
Circumference
268216476.16281
Perimeter
170751912
Area
1822263465728484
Diagonal
60369917.437884
Surface area
10933580794370904
Volume
7.7788742735221E+22
Space diagonal
73937746.768382
Perimeter
128063934
Area
7.8906322685457E+14
Altitude
36968873.384191
Surface area
7.8906322685457E+14
Volume
9.1674912480085E+21
Height
20123305.812628