1247145 is an odd 7-digits composite number following 1247144
and preceding 1247146 . In scientific notation, it is written as 1.247145 × 10^6.
The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors.
There are 618240 positive integers (up to 1247145) that are relatively prime to 1247145.
1247145 has 32 divisors, whose sum is 2142720
The reverse of 1247145 is 5417421
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 24
Digital Root 6
Name
one million two hundred forty-seven thousand one hundred forty-five
Scientific notation
1.247145 × 10^6
Engineering notation
1.247145 × 10^6
Prime Factorization
3 × 5 × 47 × 29 × 61
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1247145
Product of the distinct prime numbers
The prime factorization of 1247145 is 3 × 5 × 47 × 29 × 61.
Since it has a total of 5 prime factors.
1 , 4 , 68 , 48 , 264 , 750 , 6110 , 2051 , 27077 , 61718 , 140340 , 855866 , 4817029 , 2676509 , 69036074 , 50631168 , 571859495 , 827596860 , 9081034951 , 3269452835
n×2
2494290
n×3
3741435
n×4
4988580
n×5
6235725
n÷2
623572.5
n÷3
415715
n÷3
311786.25
n÷5
249429
n2
1555370651025
n3
1939772730572573625
n4
2.4191778620699E+24
n5
3.0170655747912E+30
2 √n
1116.7564640511
3 √n
107.63965983646
4 √n
33.417906338536
5 √n
16.564692948085
1 , 3 , 5 , 15 , 29 , 47 , 61 , 87 , 141 , 145 , 183 , 235 , 305 , 435 , 705 , 915 , 1363 , 1769 , 2867 , 4089 , 5307 , 6815 , 8601 , 8845 , 14335 , 20445 , 26535 , 43005 , 83143 , 249429 , 415715 , 1247145
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1247144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1247145 can be divided by 32 positive divisors.
The sum of these divisors (counting 1247145) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110000011110101001
3
Ternary
2100100202120
4
Quaternary
10300132221
5
Quinary
304402040
6
Senary
42421453
8
Octal
4603651
10
Decimal
1247145
12
Duodecimal
501889
16
Hexadecimal
1307a9
20
Vigesimal
7fhh5
36
Base36
qqax
md5
d0bb5acb80a06f89b8c4531f639fa470
sha1
c5aa2b7da790878753f4d60e7dacf02d319c44c2
sha256
d6144cc6ffc6d3f4ca05bd9b0efa1169b1815a46ea46c893d45cbdfcf651b2bd
sha512
999b68f28730256afb8ab2e86e11ccbc6836d8c4d3bd4139148c04aac850afc1fbe152014f13f19a63874f08b73046ba616b603da08a8444b5d21c3ba0fc2b97
ripemd-160
2a1030510a9f459aff771cd9aab9fe734a24704f
Diameter
2494290
Circumference
7836043.1399225
Area
4886341010869.3
Volume
8.1253010133341E+18
Surface area
19545364043477
Circumference
7836043.1399225
Perimeter
4988580
Area
1555370651025
Diagonal
1763729.3732458
Surface area
9332223906150
Volume
1939772730572573625
Space diagonal
2160118.5044055
Perimeter
3741435
Area
673495248044.2
Altitude
1080059.2522027
Surface area
673495248044.2
Volume
2.2860440862477E+17
Height
587909.79108193