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12842917 = 192512693
BaseRepresentation
bin110000111111…
…011110100101
3220011111011121
4300333132211
511241433132
61135133541
7214106623
oct60773645
926144147
1012842917
11728208a
1243742b1
132878879
1419c4513
1511da497
hexc3f7a5

12842917 has 8 divisors (see below), whose sum is σ = 13577760. Its totient is φ = 12114000.

The previous prime is 12842887. The next prime is 12842923. The reversal of 12842917 is 71924821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12842917 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 (12842927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3423 + ... + 6115.

It is an arithmetic number, because the mean of its divisors is an integer number (1697220).

Almost surely, 212842917 is an apocalyptic number.

It is an amenable number.

12842917 is a deficient number, since it is larger than the sum of its proper divisors (734843).

12842917 is a wasteful number, since it uses less digits than its factorization.

12842917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2963.

The product of its digits is 8064, while the sum is 34.

The square root of 12842917 is about 3583.7015779777. The cubic root of 12842917 is about 234.1825650538.

The spelling of 12842917 in words is "twelve million, eight hundred forty-two thousand, nine hundred seventeen".

Divisors: 1 19 251 2693 4769 51167 675943 12842917