42851921 is an odd 8-digits composite number following 42851920
and preceding 42851922 . In scientific notation, it is written as 4.2851921 × 10^7.
The sum of its digits is 32. It has a total of 5 prime factors and 24 positive divisors.
There are 34343232 positive integers (up to 42851921) that are relatively prime to 42851921.
42851921 has 24 divisors, whose sum is 53187840
The reverse of 42851921 is 12915824
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
forty-two million eight hundred fifty-one thousand nine hundred twenty-one
Scientific notation
4.2851921 × 10^7
Engineering notation
4.2851921 × 10^6
Prime Factorization
23 × 7 × 7 × 47 × 809
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6121703
Product of the distinct prime numbers
The prime factorization of 42851921 is 23 × 7 × 7 × 47 × 809.
Since it has a total of 5 prime factors.
9 , 10 , 4 , 31 , 904 , 533 , 5373 , 8167 , 82023 , 94503 , 836132 , 950974 , 4950424 , 3033956 , 17150462 , 71560655 , 233795647 , 408115987 , 1283887446 , 9087523081
n×2
85703842
n×3
128555763
n×4
171407684
n×5
214259605
n÷2
21425960.5
n÷3
14283973.666667
n÷3
10712980.25
n÷5
8570384.2
n2
1836287133390241
n3
7.8688431173355E+22
n4
3.3719504362545E+30
n5
1.444945537103E+38
2 √n
6546.1378690034
3 √n
349.93718872851
4 √n
80.908206437934
5 √n
33.604238557628
1 , 7 , 23 , 47 , 49 , 161 , 329 , 809 , 1081 , 1127 , 2303 , 5663 , 7567 , 18607 , 38023 , 39641 , 52969 , 130249 , 266161 , 874529 , 911743 , 1863127 , 6121703 , 42851921
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-42851920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 42851921 can be divided by 24 positive divisors.
The sum of these divisors (counting 42851921) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
10100011011101111001010001
3
Ternary
2222122002210012
4
Quaternary
2203131321101
5
Quinary
41432230141
6
Senary
4130244305
8
Octal
243357121
10
Decimal
42851921
12
Duodecimal
12426695
16
Hexadecimal
28dde51
20
Vigesimal
d7g9g1
36
Base36
pigr5
md5
dc8819b60e013866f5124638b0e6a9c3
sha1
500e4343a8e920e5b8d0654eb5312ac4d15f45ce
sha256
79e7c95010000f8f96b5c68b5d9805096a03a1aff58491eeca0f31dd3d1398cd
sha512
f0e147408aee6957a07e79ac7ffca8554467f206a7368b82851d9daa1f8451c12943ef9589e1b48f1762b675fea4114f255b589a2f3c89b49206b2f32d5a7f34
ripemd-160
553bc6875cdf63ea2bfda7779494e4dbaaa1d1f0
Diameter
85703842
Circumference
269246560.41162
Area
5.7688661681402E+15
Volume
3.2960932972896E+23
Surface area
2.3075464672561E+16
Circumference
269246560.41162
Perimeter
171407684
Area
1836287133390241
Diagonal
60601767.85194
Surface area
11017722800341446
Volume
7.8688431173355E+22
Space diagonal
74221704.373928
Perimeter
128555763
Area
7.9513565307923E+14
Altitude
37110852.186964
Surface area
7.9513565307923E+14
Volume
9.2735205472684E+21
Height
20200589.28398