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12919253 = 3729437
BaseRepresentation
bin110001010010…
…000111010101
3220022100212212
4301102013111
511301404003
61140523205
7214545314
oct61220725
926270785
1012919253
117324476
1243b0505
1328a4539
141a0427b
151202dd8
hexc521d5

12919253 has 6 divisors (see below), whose sum is σ = 13279266. Its totient is φ = 12568752.

The previous prime is 12919243. The next prime is 12919267. The reversal of 12919253 is 35291921.

It can be written as a sum of positive squares in 3 ways, for example, as 7711729 + 5207524 = 2777^2 + 2282^2 .

It is not a de Polignac number, because 12919253 - 26 = 12919189 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 (12919243) 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 5 ways as a sum of consecutive naturals, for example, 3350 + ... + 6087.

It is an arithmetic number, because the mean of its divisors is an integer number (2213211).

Almost surely, 212919253 is an apocalyptic number.

It is an amenable number.

12919253 is a deficient number, since it is larger than the sum of its proper divisors (360013).

12919253 is an frugal number, since it uses more digits than its factorization.

12919253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9511 (or 9474 counting only the distinct ones).

The product of its digits is 4860, while the sum is 32.

The square root of 12919253 is about 3594.3362391407. The cubic root of 12919253 is about 234.6456285573.

The spelling of 12919253 in words is "twelve million, nine hundred nineteen thousand, two hundred fifty-three".

Divisors: 1 37 1369 9437 349169 12919253