1242145 is an odd 7-digits composite number following 1242144
and preceding 1242146 . In scientific notation, it is written as 1.242145 × 10^6.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 979440 positive integers (up to 1242145) that are relatively prime to 1242145.
1242145 has 8 divisors, whose sum is 1512000
The reverse of 1242145 is 5412421
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 19
Digital Root 1
Name
one million two hundred forty-two thousand one hundred forty-five
Scientific notation
1.242145 × 10^6
Engineering notation
1.242145 × 10^6
Prime Factorization
5 × 71 × 3499
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1242145
Product of the distinct prime numbers
The prime factorization of 1242145 is 5 × 71 × 3499.
Since it has a total of 3 prime factors.
8 , 4 , 75 , 65 , 279 , 670 , 8792 , 9607 , 5918 , 52306 , 102796 , 945383 , 9023018 , 9498922 , 59314603 , 87328900 , 618408055 , 919603486 , 310583626 , 9761147385
n×2
2484290
n×3
3726435
n×4
4968580
n×5
6210725
n÷2
621072.5
n÷3
414048.33333333
n÷3
310536.25
n÷5
248429
n2
1542924201025
n3
1916535581682198625
n4
2.3806150901086E+24
n5
2.957069131103E+30
2 √n
1114.5155898416
3 √n
107.49561907512
4 √n
33.384361456251
5 √n
16.551389506056
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
-1242144
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 1242145 can be divided by 8 positive divisors.
The sum of these divisors (counting 1242145) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101111010000100001
3
Ternary
2100002220101
4
Quaternary
10233100201
5
Quinary
304222040
6
Senary
42342401
8
Octal
4572041
10
Decimal
1242145
12
Duodecimal
4baa01
16
Hexadecimal
12f421
20
Vigesimal
7f575
36
Base36
qmg1
md5
7b29f3f983ab751da8f6805e240ec4e8
sha1
e9def9ae7c2629dc6d5cea7ff5c80cc308aaf25e
sha256
4e61cf492fbd717036b38d5874d2fa223da822387af53eb2e140bb05fde2d1aa
sha512
25964d936bfe8000345a2a867529ca1f07ede56c3f88d0cc70688592571602952d5ef829951f1088da2d57b59307317631c8a54b6162813e0f38854a6354d980
ripemd-160
3161eabd0cd3384edeff270e36060494b034a007
Diameter
2484290
Circumference
7804627.2133866
Area
4847239334986
Volume
8.027965471675E+18
Surface area
19388957339944
Circumference
7804627.2133866
Perimeter
4968580
Area
1542924201025
Diagonal
1756658.3054339
Surface area
9257545206150
Volume
1916535581682198625
Space diagonal
2151458.2503676
Perimeter
3726435
Area
668105777100.73
Altitude
1075729.1251838
Surface area
668105777100.73
Volume
2.2586588436546E+17
Height
585552.76847798