1239968985 is an odd 10-digits composite number following 1239968984
and preceding 1239968986 . In scientific notation, it is written as 1.239968985 × 10^9.
The sum of its digits is 60. It has a total of 3 prime factors and 8 positive divisors.
There are 632563712 positive integers (up to 1239968985) that are relatively prime to 1239968985.
1239968985 has 8 divisors, whose sum is 1380139776
The reverse of 1239968985 is 5898699321
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 60
Digital Root 6
Name
one billion two hundred thirty-nine million nine hundred sixty-eight thousand nine hundred eighty-five
Scientific notation
1.239968985 × 10^9
Engineering notation
1.239968985 × 10^9
Prime Factorization
15 × 23 × 3594113
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1239968985
Product of the distinct prime numbers
The prime factorization of 1239968985 is 15 × 23 × 3594113.
Since it has a total of 3 prime factors.
5 , 2 , 57 , 80 , 132 , 706 , 1083 , 5778 , 44618 , 28022 , 104399 , 507788 , 9992925 , 4666658 , 31942497 , 63326797 , 151839531 , 424489269 , 3094657759 , 3663813085
n×2
2479937970
n×3
3719906955
n×4
4959875940
n×5
6199844925
n÷2
619984492.5
n÷3
413322995
n÷3
309992246.25
n÷5
247993797
n2
1537523083761930225
n3
1.9064809375864E+27
n4
2.3639772331008E+36
n5
2.9312584502911E+45
2 √n
35213.193337157
3 √n
1074.3281137734
4 √n
187.6517874606
5 √n
65.869165971075
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
-1239968984
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 1239968985 can be divided by 8 positive divisors.
The sum of these divisors (counting 1239968985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001001111010000110110011011001
3
Ternary
10012102012221200020
4
Quaternary
1021322012303121
5
Quinary
10014413001420
6
Senary
323012501053
8
Octal
11172066331
10
Decimal
1239968985
12
Duodecimal
2a731a789
16
Hexadecimal
49e86cd9
20
Vigesimal
j79g295
36
Base36
ki8u6x
md5
9770fdfa2f0fcf739fcfc31671529826
sha1
423a7c2b09cb63e48cb17b0850eedc0ce7d0c483
sha256
ed57b71876e942058d033e8ca96ae15e6f55273c79a85d20d3e8a1e449a034d8
sha512
1eeb59bc2bf300d32cd8969947e75b3eee8a2a59e8588e3bc0153a70c9229cef8ca9606b15a733dec92db14a704ea324a115ca21818f0855c452a756546d1b61
ripemd-160
eecdf446ff81f55d82ce718529c2d2e27af0bb72
Diameter
2479937970
Circumference
7790954907.9104
Area
4.8302712246712E+18
Volume
7.9858486769737E+27
Surface area
1.9321084898685E+19
Circumference
7790954907.9104
Perimeter
4959875940
Area
1537523083761930225
Diagonal
1753580955.509
Surface area
9.2251385025716E+18
Volume
1.9064809375864E+27
Space diagonal
2147689281.8296
Perimeter
3719906955
Area
6.6576702472141E+17
Altitude
1073844640.9148
Surface area
6.6576702472141E+17
Volume
2.2468093319503E+26
Height
584526985.16967