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12829429 = 17417369
BaseRepresentation
bin110000111100…
…001011110101
3220010210200001
4300330023311
511241020204
61134551301
7214022404
oct60741365
926123601
1012829429
117272a38
124368531
1328726a2
1419bd63b
1511d64a4
hexc3c2f5

12829429 has 4 divisors (see below), whose sum is σ = 12838540. Its totient is φ = 12820320.

The previous prime is 12829391. The next prime is 12829451. The reversal of 12829429 is 92492821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92492821 = 234021427.

It can be written as a sum of positive squares in 2 ways, for example, as 4848804 + 7980625 = 2202^2 + 2825^2 .

It is a cyclic number.

It is not a de Polignac number, because 12829429 - 27 = 12829301 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 (12829489) 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, 1944 + ... + 5425.

It is an arithmetic number, because the mean of its divisors is an integer number (3209635).

Almost surely, 212829429 is an apocalyptic number.

It is an amenable number.

12829429 is a deficient number, since it is larger than the sum of its proper divisors (9111).

12829429 is an equidigital number, since it uses as much as digits as its factorization.

12829429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9110.

The product of its digits is 20736, while the sum is 37.

The square root of 12829429 is about 3581.8192305028. The cubic root of 12829429 is about 234.1005545870.

The spelling of 12829429 in words is "twelve million, eight hundred twenty-nine thousand, four hundred twenty-nine".

Divisors: 1 1741 7369 12829429