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12919297 = 192923447
BaseRepresentation
bin110001010010…
…001000000001
3220022100221111
4301102020001
511301404142
61140523321
7214545406
oct61221001
926270844
1012919297
117324506
1243b0541
1328a4571
141a042ad
151202e17
hexc52201

12919297 has 8 divisors (see below), whose sum is σ = 14068800. Its totient is φ = 11816784.

The previous prime is 12919273. The next prime is 12919301. The reversal of 12919297 is 79291921.

It is a happy number.

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

It is not a de Polignac number, because 12919297 - 211 = 12917249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12919267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11173 + ... + 12274.

It is an arithmetic number, because the mean of its divisors is an integer number (1758600).

Almost surely, 212919297 is an apocalyptic number.

It is an amenable number.

12919297 is a deficient number, since it is larger than the sum of its proper divisors (1149503).

12919297 is a wasteful number, since it uses less digits than its factorization.

12919297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23495.

The product of its digits is 20412, while the sum is 40.

The square root of 12919297 is about 3594.3423598761. The cubic root of 12919297 is about 234.6458949399.

The spelling of 12919297 in words is "twelve million, nine hundred nineteen thousand, two hundred ninety-seven".

Divisors: 1 19 29 551 23447 445493 679963 12919297