Search a number
-
+
14788397 = 131137569
BaseRepresentation
bin111000011010…
…011100101101
31000211022212102
4320122130231
512241212042
61244544445
7236461601
oct70323455
930738772
1014788397
118390818
124b52125
1330aa240
141d6d501
151471b32
hexe1a72d

14788397 has 4 divisors (see below), whose sum is σ = 15925980. Its totient is φ = 13650816.

The previous prime is 14788393. The next prime is 14788421. The reversal of 14788397 is 79388741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79388741 = 731087517.

It can be written as a sum of positive squares in 2 ways, for example, as 1142761 + 13645636 = 1069^2 + 3694^2 .

It is a cyclic number.

It is not a de Polignac number, because 14788397 - 22 = 14788393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14788393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568772 + ... + 568797.

It is an arithmetic number, because the mean of its divisors is an integer number (3981495).

Almost surely, 214788397 is an apocalyptic number.

It is an amenable number.

14788397 is a deficient number, since it is larger than the sum of its proper divisors (1137583).

14788397 is a wasteful number, since it uses less digits than its factorization.

14788397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137582.

The product of its digits is 338688, while the sum is 47.

The square root of 14788397 is about 3845.5684885333. The cubic root of 14788397 is about 245.4560269562.

The spelling of 14788397 in words is "fourteen million, seven hundred eighty-eight thousand, three hundred ninety-seven".

Divisors: 1 13 1137569 14788397