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12211029 = 324992719
BaseRepresentation
bin101110100101…
…001101010101
3211222101101100
4232211031111
511111223104
61113420313
7205535445
oct56451525
924871340
1012211029
116990366
12410a699
1326b707c
14189c125
151113139
hexba5355

12211029 has 12 divisors (see below), whose sum is σ = 17680000. Its totient is φ = 8121384.

The previous prime is 12211021. The next prime is 12211057. The reversal of 12211029 is 92011221.

It is not a de Polignac number, because 12211029 - 23 = 12211021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3132 + ... + 5850.

Almost surely, 212211029 is an apocalyptic number.

It is an amenable number.

12211029 is a deficient number, since it is larger than the sum of its proper divisors (5468971).

12211029 is a wasteful number, since it uses less digits than its factorization.

12211029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224 (or 3221 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 12211029 is about 3494.4282794185. The cubic root of 12211029 is about 230.2771014299.

The spelling of 12211029 in words is "twelve million, two hundred eleven thousand, twenty-nine".

Divisors: 1 3 9 499 1497 2719 4491 8157 24471 1356781 4070343 12211029