1331505987 is an odd 10-digits composite number following 1331505986
and preceding 1331505988 . In scientific notation, it is written as 1.331505987 × 10^9.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 748386720 positive integers (up to 1331505987) that are relatively prime to 1331505987.
1331505987 has 16 divisors, whose sum is 2062225152
The reverse of 1331505987 is 7895051331
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 42
Digital Root 6
Name
one billion three hundred thirty-one million five hundred five thousand nine hundred eighty-seven
Scientific notation
1.331505987 × 10^9
Engineering notation
1.331505987 × 10^9
Prime Factorization
3 × 7 × 61 × 1039427
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1331505987
Product of the distinct prime numbers
The prime factorization of 1331505987 is 3 × 7 × 61 × 1039427.
Since it has a total of 4 prime factors.
7 , 3 , 91 , 10 , 871 , 523 , 5049 , 9962 , 61030 , 2813 , 126790 , 374787 , 9088762 , 5612993 , 59395758 , 35373059 , 55442929 , 803315622 , 9420910607 , 7831557342
n×2
2663011974
n×3
3994517961
n×4
5326023948
n×5
6657529935
n÷2
665752993.5
n÷3
443835329
n÷3
332876496.75
n÷5
266301197.4
n2
1772908193416844169
n3
2.3606378739359E+27
n4
3.1432034622846E+36
n5
4.185194228391E+45
2 √n
36489.806617739
3 √n
1100.1393726985
4 √n
191.02305258198
5 √n
66.814177224786
1 , 3 , 7 , 21 , 61 , 183 , 427 , 1281 , 1039427 , 3118281 , 7275989 , 21827967 , 63405047 , 190215141 , 443835329 , 1331505987
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
-1331505986
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 1331505987 can be divided by 16 positive divisors.
The sum of these divisors (counting 1331505987) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010111010010101101000011
3
Ternary
10102210110111211120
4
Quaternary
1033113102231003
5
Quinary
10211331142422
6
Senary
340042443323
8
Octal
11727225503
10
Decimal
1331505987
12
Duodecimal
311b03543
16
Hexadecimal
4f5d2b43
20
Vigesimal
10g1i4j7
36
Base36
m0qslf
md5
9411ba2881196bd16ecaaf0174197d9a
sha1
7fbdaa60fd4b978d01788b597f8da500575e2df9
sha256
8412021145886fbd3b690d9c78659a91b742b0d5100f8dff696346b03fea5d04
sha512
10022df3242eaee1b72b63679cabe58acb1c3e538de58c10769dcf6c53ab909f250c9625f52e81272d15a49806e96ae8523f2c83a53207a90d1f2f3061510611
ripemd-160
2756fbeb2e6ee98ee5b39e28de52f4d9efbd7e0d
Diameter
2663011974
Circumference
8366098853.9401
Area
5.5697553559275E+18
Volume
9.8882168033904E+27
Surface area
2.227902142371E+19
Circumference
8366098853.9401
Perimeter
5326023948
Area
1772908193416844169
Diagonal
1883033825.1964
Surface area
1.0637449160501E+19
Volume
2.3606378739359E+27
Space diagonal
2306236020.0661
Perimeter
3994517961
Area
7.6769176703828E+17
Altitude
1153118010.0331
Surface area
7.6769176703828E+17
Volume
2.7820384143098E+26
Height
627677941.73212