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13330623 = 34443541
BaseRepresentation
bin110010110110…
…100010111111
3221002021011210
4302312202333
511403034443
61153415503
7221210535
oct62664277
927067153
1013330623
117585549
12456a593
1329b9857
141ab0155
151284c33
hexcb68bf

13330623 has 4 divisors (see below), whose sum is σ = 17774168. Its totient is φ = 8887080.

The previous prime is 13330579. The next prime is 13330627. The reversal of 13330623 is 32603331.

13330623 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13330623 - 28 = 13330367 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13330623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2221768 + ... + 2221773.

It is an arithmetic number, because the mean of its divisors is an integer number (4443542).

Almost surely, 213330623 is an apocalyptic number.

13330623 is a deficient number, since it is larger than the sum of its proper divisors (4443545).

13330623 is an equidigital number, since it uses as much as digits as its factorization.

13330623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443544.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 13330623 is about 3651.1125701627. The cubic root of 13330623 is about 237.1101519330.

Adding to 13330623 its reverse (32603331), we get a palindrome (45933954).

The spelling of 13330623 in words is "thirteen million, three hundred thirty thousand, six hundred twenty-three".

Divisors: 1 3 4443541 13330623