42156987 is an odd 8-digits composite number following 42156986
and preceding 42156988 . In scientific notation, it is written as 4.2156987 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 28104656 positive integers (up to 42156987) that are relatively prime to 42156987.
42156987 has 4 divisors, whose sum is 56209320
The reverse of 42156987 is 78965124
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
forty-two million one hundred fifty-six thousand nine hundred eighty-seven
Scientific notation
4.2156987 × 10^7
Engineering notation
4.2156987 × 10^6
Prime Factorization
3 × 14052329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
42156987
Product of the distinct prime numbers
The prime factorization of 42156987 is 3 × 14052329.
Since it has a total of 2 prime factors.
8 , 8 , 46 , 97 , 69 , 370 , 46 , 1386 , 53169 , 153 , 715040 , 325953 , 3959069 , 5999711 , 63748158 , 13861177 , 70441710 , 994500548 , 7409578195 , 3803690581
n×2
84313974
n×3
126470961
n×4
168627948
n×5
210784935
n÷2
21078493.5
n÷3
14052329
n÷3
10539246.75
n÷5
8431397.4
n2
1777211552918169
n3
7.4921884332621E+22
n4
3.1584809038258E+30
n5
1.3315203840233E+38
2 √n
6492.8412116731
3 √n
348.03521410072
4 √n
80.578168331584
5 √n
33.494531903934
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
-42156986
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 42156987 can be divided by 4 positive divisors.
The sum of these divisors (counting 42156987) is 1, the average is 0.25.
Base
System
Value
2
Binary
10100000110100001110111011
3
Ternary
2221022210111220
4
Quaternary
2200310032323
5
Quinary
41243010422
6
Senary
4103323123
8
Octal
240641673
10
Decimal
42156987
12
Duodecimal
121504a3
16
Hexadecimal
28343bb
20
Vigesimal
d39c97
36
Base36
p3kjf
md5
3ec9f219cfbccc3b868d1f0d1417b21c
sha1
9aa2008b3162d08add57412aa6beac20c2886ad7
sha256
537cee2d90bed2ef96916902f01b83faa4f6fd26b378b11daff254915b5faa25
sha512
0b2c27333f14b8fb752210368dba52c8d28a61f7243039d58bd95ccff5e9eab3ed9957b627a031ec1950f5e2402eb32d087db63ef13dfa7b76f5f6169796ceb2
ripemd-160
76b09a53a0443ff0e085008c1e730fe0b1e99d78
Diameter
84313974
Circumference
264880161.31336
Area
5.5832747585226E+15
Volume
3.1383205521662E+23
Surface area
2.2333099034091E+16
Circumference
264880161.31336
Perimeter
168627948
Area
1777211552918169
Diagonal
59618982.764186
Surface area
10663269317509014
Volume
7.4921884332621E+22
Space diagonal
73018043.378021
Perimeter
126470961
Area
7.6955517636316E+14
Altitude
36509021.68901
Surface area
7.6955517636316E+14
Volume
8.8296287451451E+21
Height
19872994.254729