1285997142 is an even 10-digits composite number following 1285997141
and preceding 1285997143 . In scientific notation, it is written as 1.285997142 × 10^9.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 425581512 positive integers (up to 1285997142) that are relatively prime to 1285997142.
1285997142 has 16 divisors, whose sum is 2590499520
The reverse of 1285997142 is 2417995821
Previous prime number is 139
Is Prime? no
Number parity even
Number length 10
Sum of Digits 48
Digital Root 3
Name
one billion two hundred eighty-five million nine hundred ninety-seven thousand one hundred forty-two
Scientific notation
1.285997142 × 10^9
Engineering notation
1.285997142 × 10^9
Prime Factorization
2 × 3 × 139 × 1541963
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1285997142
Product of the distinct prime numbers
The prime factorization of 1285997142 is 2 × 3 × 139 × 1541963.
Since it has a total of 4 prime factors.
1 , 4 , 8 , 19 , 930 , 807 , 8930 , 4976 , 98542 , 31699 , 756332 , 379184 , 1095706 , 4960277 , 38015036 , 22008093 , 380188652 , 555422750 , 7414430315 , 6075423433
n×2
2571994284
n×3
3857991426
n×4
5143988568
n×5
6429985710
n÷2
642998571
n÷3
428665714
n÷3
321499285.5
n÷5
257199428.4
n2
1653788649232168164
n3
2.1267674763846E+27
n4
2.7350168963292E+36
n5
3.517223912001E+45
2 √n
35860.802305582
3 √n
1087.4601081417
4 √n
189.36948620509
5 √n
66.351080670801
1 , 2 , 3 , 6 , 139 , 278 , 417 , 834 , 1541963 , 3083926 , 4625889 , 9251778 , 214332857 , 428665714 , 642998571 , 1285997142
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
-1285997141
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 1285997142 can be divided by 16 positive divisors.
The sum of these divisors (counting 1285997142) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101001101100001001010110
3
Ternary
10022121211102102210
4
Quaternary
1030221230021112
5
Quinary
10113203402032
6
Senary
331335214250
8
Octal
11451541126
10
Decimal
1285997142
12
Duodecimal
2ba817386
16
Hexadecimal
4ca6c256
20
Vigesimal
101h9ch2
36
Base36
l9ndqu
md5
37028bed6000595c3fb1139f870e43ec
sha1
0fdf7f8c217103e9109f9870b3b06591dd66107a
sha256
ad17741c63fd8267c806ecb662613f4f2d86f6b8e1b23bcd6517d78eb173d028
sha512
3a0928c16c77df53dc35379b6e8b2247c31aa6298678e60edb9ab8835e6517267dbf7f62b1a325cb69a1d2c8a8e58adc9de0513772918e644849ee898c7c19d6
ripemd-160
2405f92791cbb303d219d9cb7674ce10303b9864
Diameter
2571994284
Circumference
8080158347.6893
Area
5.195530271018E+18
Volume
8.9085827729381E+27
Surface area
2.0782121084072E+19
Circumference
8080158347.6893
Perimeter
5143988568
Area
1653788649232168164
Diagonal
1818674599.3894
Surface area
9.922731895393E+18
Volume
2.1267674763846E+27
Space diagonal
2227412388.3324
Perimeter
3857991426
Area
7.161114913627E+17
Altitude
1113706194.1662
Surface area
7.161114913627E+17
Volume
2.5064195075976E+26
Height
606224866.46315