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12842829 = 321426981
BaseRepresentation
bin110000111111…
…011101001101
3220011111001100
4300333131031
511241432304
61135133313
7214106436
oct60773515
926144040
1012842829
11728200a
124374239
13287880c
1419c448d
1511da439
hexc3f74d

12842829 has 6 divisors (see below), whose sum is σ = 18550766. Its totient is φ = 8561880.

The previous prime is 12842821. The next prime is 12842831. The reversal of 12842829 is 92824821.

It can be written as a sum of positive squares in only one way, i.e., 12320100 + 522729 = 3510^2 + 723^2 .

It is not a de Polignac number, because 12842829 - 23 = 12842821 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 12842793 and 12842802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12842821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 713482 + ... + 713499.

Almost surely, 212842829 is an apocalyptic number.

It is an amenable number.

12842829 is a deficient number, since it is larger than the sum of its proper divisors (5707937).

12842829 is a wasteful number, since it uses less digits than its factorization.

12842829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426987 (or 1426984 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 12842829 is about 3583.6893001487. The cubic root of 12842829 is about 234.1820301776.

The spelling of 12842829 in words is "twelve million, eight hundred forty-two thousand, eight hundred twenty-nine".

Divisors: 1 3 9 1426981 4280943 12842829