Search a number
-
+
12212469 = 3259109211
BaseRepresentation
bin101110100101…
…100011110101
3211222110100200
4232211203311
511111244334
61113431113
7205542603
oct56454365
924873320
1012212469
116991455
12410b499
1326b7919
14189c873
151113799
hexba58f5

12212469 has 24 divisors (see below), whose sum is σ = 18189600. Its totient is φ = 7892640.

The previous prime is 12212467. The next prime is 12212483. The reversal of 12212469 is 96421221.

12212469 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12212469 - 21 = 12212467 is a prime.

It is a super-2 number, since 2×122124692 = 298288798151922, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57774 + ... + 57984.

It is an arithmetic number, because the mean of its divisors is an integer number (757900).

Almost surely, 212212469 is an apocalyptic number.

It is an amenable number.

12212469 is a deficient number, since it is larger than the sum of its proper divisors (5977131).

12212469 is a wasteful number, since it uses less digits than its factorization.

12212469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 382 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 12212469 is about 3494.6343156330. The cubic root of 12212469 is about 230.2861529738.

The spelling of 12212469 in words is "twelve million, two hundred twelve thousand, four hundred sixty-nine".

Divisors: 1 3 9 59 109 177 211 327 531 633 981 1899 6431 12449 19293 22999 37347 57879 68997 112041 206991 1356941 4070823 12212469