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12919327 = 37349171
BaseRepresentation
bin110001010010…
…001000011111
3220022100222121
4301102020133
511301404302
61140523411
7214545451
oct61221037
926270877
1012919327
117324533
1243b0567
1328a4595
141a042d1
151202e37
hexc5221f

12919327 has 4 divisors (see below), whose sum is σ = 13268536. Its totient is φ = 12570120.

The previous prime is 12919301. The next prime is 12919339. The reversal of 12919327 is 72391921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72391921 = 710341703.

It is a cyclic number.

It is not a de Polignac number, because 12919327 - 223 = 4530719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12919292 and 12919301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12919367) 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 3 ways as a sum of consecutive naturals, for example, 174549 + ... + 174622.

It is an arithmetic number, because the mean of its divisors is an integer number (3317134).

Almost surely, 212919327 is an apocalyptic number.

12919327 is a deficient number, since it is larger than the sum of its proper divisors (349209).

12919327 is an equidigital number, since it uses as much as digits as its factorization.

12919327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349208.

The product of its digits is 6804, while the sum is 34.

The square root of 12919327 is about 3594.3465330989. The cubic root of 12919327 is about 234.6460765641.

The spelling of 12919327 in words is "twelve million, nine hundred nineteen thousand, three hundred twenty-seven".

Divisors: 1 37 349171 12919327