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12786996 = 2234324781
BaseRepresentation
bin110000110001…
…110100110100
3220001122110110
4300301310310
511233140441
61134023020
7213454605
oct60616464
926048413
1012786996
117244072
124347a70
132859291
1419abdac
1511c8b16
hexc31d34

12786996 has 24 divisors (see below), whose sum is σ = 30531424. Its totient is φ = 4163040.

The previous prime is 12786979. The next prime is 12786997. The reversal of 12786996 is 69968721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12786997) 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 7 ways as a sum of consecutive naturals, for example, 11875 + ... + 12906.

Almost surely, 212786996 is an apocalyptic number.

It is an amenable number.

12786996 is an abundant number, since it is smaller than the sum of its proper divisors (17744428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12786996 is a wasteful number, since it uses less digits than its factorization.

12786996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24831 (or 24829 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 12786996 is about 3575.8909379342. The cubic root of 12786996 is about 233.8421757016.

The spelling of 12786996 in words is "twelve million, seven hundred eighty-six thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 24781 49562 74343 99124 148686 297372 1065583 2131166 3196749 4262332 6393498 12786996