1285449249 is an odd 10-digits composite number following 1285449248
and preceding 1285449250 . In scientific notation, it is written as 1.285449249 × 10^9.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 724195920 positive integers (up to 1285449249) that are relatively prime to 1285449249.
1285449249 has 16 divisors, whose sum is 1986370560
The reverse of 1285449249 is 9429445821
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 48
Digital Root 3
Name
one billion two hundred eighty-five million four hundred forty-nine thousand two hundred forty-nine
Scientific notation
1.285449249 × 10^9
Engineering notation
1.285449249 × 10^9
Prime Factorization
3 × 7 × 71 × 862139
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1285449249
Product of the distinct prime numbers
The prime factorization of 1285449249 is 3 × 7 × 71 × 862139.
Since it has a total of 4 prime factors.
7 , 6 , 86 , 65 , 235 , 632 , 6192 , 3235 , 10169 , 31219 , 778760 , 814850 , 7883264 , 3592820 , 92688783 , 63225582 , 645162785 , 401209922 , 4479887345 , 9700630366
n×2
2570898498
n×3
3856347747
n×4
5141796996
n×5
6427246245
n÷2
642724624.5
n÷3
428483083
n÷3
321362312.25
n÷5
257089849.8
n2
1652379771754664001
n3
2.1240503366648E+27
n4
2.730358910104E+36
n5
3.5097378104936E+45
2 √n
35853.162329145
3 √n
1087.305650459
4 √n
189.34931298831
5 √n
66.345425994239
1 , 3 , 7 , 21 , 71 , 213 , 497 , 1491 , 862139 , 2586417 , 6034973 , 18104919 , 61211869 , 183635607 , 428483083 , 1285449249
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
-1285449248
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 1285449249 can be divided by 16 positive divisors.
The sum of these divisors (counting 1285449249) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100100111100110011000100001
3
Ternary
10022120210120212110
4
Quaternary
1030213212120201
5
Quinary
10113033333444
6
Senary
331315345533
8
Octal
11447463041
10
Decimal
1285449249
12
Duodecimal
2ba5b22a9
16
Hexadecimal
4c9e6621
20
Vigesimal
101e1329
36
Base36
l9bmzl
md5
298f5db1b8c0ddbfef517610cef3c7ed
sha1
42089cc4aa43ae2a04d85f278c643355220e6cde
sha256
13f9c747d0397f3e003ae4f5eabfe0366e39ba52ba2289055e2fc11c034bd50e
sha512
e2304de6fea50c1effad298aa8db632011a9d60209835a716d99f1ffd4af0dfd15c6254e73f9c9fae77427d1ac02f80f9f4fa16a559687851e32e08558d9dd92
ripemd-160
e526b63f36c2220f03d3f25721a720c9a89cfef5
Diameter
2570898498
Circumference
8076715834.4418
Area
5.1911041518848E+18
Volume
8.8972012446949E+27
Surface area
2.0764416607539E+19
Circumference
8076715834.4418
Perimeter
5141796996
Area
1652379771754664001
Diagonal
1817899761.6781
Surface area
9.914278630528E+18
Volume
2.1240503366648E+27
Space diagonal
2226463409.8193
Perimeter
3856347747
Area
7.1550142951954E+17
Altitude
1113231704.9096
Surface area
7.1550142951954E+17
Volume
2.5032173277288E+26
Height
605966587.22604