Search a number
-
+
13050371497 = 76117148977
BaseRepresentation
bin11000010011101110…
…01101110110101001
31020200111120120011111
430021313031312221
5203211343341442
65554550430321
7641254220212
oct141167156651
936614516144
1013050371497
11559765a299
1226426623a1
1312cc95a217
148bb31c409
15515aa1b17
hex309dcdda9

13050371497 has 4 divisors (see below), whose sum is σ = 13067521236. Its totient is φ = 13033221760.

The previous prime is 13050371459. The next prime is 13050371531. The reversal of 13050371497 is 79417305031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 227979801 + 12822391696 = 15099^2 + 113236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13050371497 is a prime.

It is a super-3 number, since 3×130503714973 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13050371797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8573728 + ... + 8575249.

It is an arithmetic number, because the mean of its divisors is an integer number (3266880309).

Almost surely, 213050371497 is an apocalyptic number.

It is an amenable number.

13050371497 is a deficient number, since it is larger than the sum of its proper divisors (17149739).

13050371497 is an equidigital number, since it uses as much as digits as its factorization.

13050371497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17149738.

The product of its (nonzero) digits is 79380, while the sum is 40.

The spelling of 13050371497 in words is "thirteen billion, fifty million, three hundred seventy-one thousand, four hundred ninety-seven".

Divisors: 1 761 17148977 13050371497