Search a number
-
+
12813469 = 472271201
BaseRepresentation
bin110000111000…
…010010011101
3220002222202221
4300320102131
511240012334
61134345341
7213625024
oct60702235
926088687
1012813469
117261a49
12435b251
132868346
1419b78bb
1511d18b4
hexc3849d

12813469 has 8 divisors (see below), whose sum is σ = 13154688. Its totient is φ = 12475200.

The previous prime is 12813413. The next prime is 12813487. The reversal of 12813469 is 96431821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12813469 - 215 = 12780701 is a prime.

It is a super-2 number, since 2×128134692 = 328369975627922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12813169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10069 + ... + 11269.

It is an arithmetic number, because the mean of its divisors is an integer number (1644336).

Almost surely, 212813469 is an apocalyptic number.

It is an amenable number.

12813469 is a deficient number, since it is larger than the sum of its proper divisors (341219).

12813469 is a wasteful number, since it uses less digits than its factorization.

12813469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475.

The product of its digits is 10368, while the sum is 34.

The square root of 12813469 is about 3579.5906190513. The cubic root of 12813469 is about 234.0034394507.

The spelling of 12813469 in words is "twelve million, eight hundred thirteen thousand, four hundred sixty-nine".

Divisors: 1 47 227 1201 10669 56447 272627 12813469