1285397898 is an even 10-digits composite number following 1285397897
and preceding 1285397899 . In scientific notation, it is written as 1.285397898 × 10^9.
The sum of its digits is 60. It has a total of 3 prime factors and 8 positive divisors.
There are 428465964 positive integers (up to 1285397898) that are relatively prime to 1285397898.
1285397898 has 8 divisors, whose sum is 2570795808
The reverse of 1285397898 is 8987935821
Previous prime number is 3
Is Prime? no
Number parity even
Number length 10
Sum of Digits 60
Digital Root 6
Name
one billion two hundred eighty-five million three hundred ninety-seven thousand eight hundred ninety-eight
Scientific notation
1.285397898 × 10^9
Engineering notation
1.285397898 × 10^9
Prime Factorization
2 × 3 × 214232983
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1285397898
Product of the distinct prime numbers
The prime factorization of 1285397898 is 2 × 3 × 214232983.
Since it has a total of 3 prime factors.
5 , 5 , 17 , 40 , 467 , 348 , 253 , 9018 , 70707 , 20925 , 48998 , 533310 , 387953 , 6820345 , 62854593 , 65441001 , 915871620 , 140414724 , 8741500513 , 5305016626
n×2
2570795796
n×3
3856193694
n×4
5141591592
n×5
6426989490
n÷2
642698949
n÷3
428465966
n÷3
321349474.5
n÷5
257079579.6
n2
1652247756182818404
n3
2.1237957927726E+27
n4
2.7299226478112E+36
n5
3.5090368331991E+45
2 √n
35852.446192694
3 √n
1087.2911717399
4 √n
189.34742193305
5 √n
66.34489591366
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
-1285397897
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 1285397898 can be divided by 8 positive divisors.
The sum of these divisors (counting 1285397898) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100100111011001110110001010
3
Ternary
10022120200222102120
4
Quaternary
1030213121312022
5
Quinary
10113030213043
6
Senary
331314312110
8
Octal
11447316612
10
Decimal
1285397898
12
Duodecimal
2ba588636
16
Hexadecimal
4c9d9d8a
20
Vigesimal
101deeei
36
Base36
l9ajd6
md5
9cd11277797ca38878290ef077961fea
sha1
77b40ff8c70086f8d2b6a17e35e8b14c9978a1a7
sha256
e909ddfc6ecaf56e5740464da2c4bb42634095fdd0eeefb18440909f6c4d47df
sha512
0dda55ea72d0a8d769ae29c799c37bca678ee6de6271f00d2534316b04dd49a06c6cc98536a6cbd0904a68a3c81723630a557ca9f872196d9412bdeb37db9177
ripemd-160
08f52fbb574a780a75b49acbc5ca27ae9b432d8b
Diameter
2570795796
Circumference
8076393186.5931
Area
5.1906894127342E+18
Volume
8.8961350137325E+27
Surface area
2.0762757650937E+19
Circumference
8076393186.5931
Perimeter
5141591592
Area
1652247756182818404
Diagonal
1817827140.3975
Surface area
9.9134865370969E+18
Volume
2.1237957927726E+27
Space diagonal
2226374467.2782
Perimeter
3856193694
Area
7.1544426510008E+17
Altitude
1113187233.6391
Surface area
7.1544426510008E+17
Volume
2.502917344875E+26
Height
605942380.13249