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12422984 = 237972287
BaseRepresentation
bin101111011000…
…111101001000
3212101011010112
4233120331020
511140013414
61122133452
7210410420
oct57307510
925334115
1012422984
117015632
1241b1288
13275c6a2
141915480
151155d3e
hexbd8f48

12422984 has 32 divisors (see below), whose sum is σ = 26906880. Its totient is φ = 5266944.

The previous prime is 12422953. The next prime is 12422989. The reversal of 12422984 is 48922421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12422984.

It is not an unprimeable number, because it can be changed into a prime (12422989) 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 7 ways as a sum of consecutive naturals, for example, 4289 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (840840).

Almost surely, 212422984 is an apocalyptic number.

12422984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12422984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13453440).

12422984 is an abundant number, since it is smaller than the sum of its proper divisors (14483896).

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

12422984 is a wasteful number, since it uses less digits than its factorization.

12422984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397 (or 2393 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 12422984 is about 3524.6253701635. The cubic root of 12422984 is about 231.6018239471.

The spelling of 12422984 in words is "twelve million, four hundred twenty-two thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 56 97 194 388 679 776 1358 2287 2716 4574 5432 9148 16009 18296 32018 64036 128072 221839 443678 887356 1552873 1774712 3105746 6211492 12422984