1285387897 is an odd 10-digits composite number following 1285387896
and preceding 1285387898 . In scientific notation, it is written as 1.285387897 × 10^9.
The sum of its digits is 58. It has a total of 2 prime factors and 4 positive divisors.
There are 1273374820 positive integers (up to 1285387897) that are relatively prime to 1285387897.
1285387897 has 4 divisors, whose sum is 1297400976
The reverse of 1285387897 is 7987835821
Previous prime number is 107
Is Prime? no Number parity odd Number length 10 Sum of Digits 58 Digital Root 4
Name
one billion two hundred eighty-five million three hundred eighty-seven thousand eight hundred ninety-seven
Scientific notation
1.285387897 × 10^9
Engineering notation
1.285387897 × 10^9
Prime Factorization
107 × 12012971
Composite number
ω Distinct Factors
2 Total number of distinct prime factors
Ω Total Factors
2 Total number of prime factors
rad Radical
1285387897 Product of the distinct prime numbers
The prime factorization of 1285387897 is 107 × 12012971.
Since it has a total of 2 prime factors.
7 , 8 , 58 , 78 , 254 , 694 , 6453 , 5748 , 28788 , 41444 , 509046 , 461298 , 7899501 , 5179451 , 85548365 , 90641196 , 911024263 , 259024266 , 2309452673 , 4808506002
n×2
2570775794
n×3
3856163691
n×4
5141551588
n×5
6426939485
n÷2
642693948.5
n÷3
428462632.33333
n÷3
321346974.25
n÷5
257077579.4
n2
1652222045754082609
n3
2.1237462207689E+27
n4
2.7298376884758E+36
n5
3.5089003255413E+45
2 √n35852.306717978
3 √n1087.2883518537
4 √n189.34705362899
5 √n66.344792674442
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
-1285387896 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 1285387897 can be divided by 4 positive divisors.
The sum of these divisors (counting 1285387897) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100100111010111011001111001
3
Ternary
10022120200110201011
4
Quaternary
1030213113121321
5
Quinary
10113024403042
6
Senary
331314153521
8
Octal
11447273171
10
Decimal
1285387897
12
Duodecimal
2ba5828a1
16
Hexadecimal
4c9d7679
20
Vigesimal
101dd9eh
36
Base36
l9abnd
md5
2aabc13a6b9ae39a89f685bd18aeec58
sha1
36ea2087ff8f823f20f1386efb9369a7c2782307
sha256
b44b550f96f29406d42e6f9c6f4c4cd2137ccbbc69f90fb9732ee92c16e472aa
sha512
0a9e46271add196c6fa1828f2e157136a776000d045d4e21ab71f2f1ba2df81e964edcc5e9f6d040d420c8c3b7130014b686eb800ed298c9ec3ddeee4b49010a
ripemd-160
0cf32a6e93fd4e8d18414e400d113da3487e4649
Diameter
2570775794
Circumference
8076330348.4569
Area
5.1906086410401E+18
Volume
8.8959273670088E+27
Surface area
2.076243456416E+19
Circumference
8076330348.4569
Perimeter
5141551588
Area
1652222045754082609
Diagonal
1817812996.8476
Surface area
9.9133322745245E+18
Volume
2.1237462207689E+27
Space diagonal
2226357145.0381
Perimeter
3856163691
Area
7.1543313215787E+17
Altitude
1113178572.5191
Surface area
7.1543313215787E+17
Volume
2.5028589237083E+26
Height
605937665.61588