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12434442 = 233779709
BaseRepresentation
bin101111011011…
…110000001010
3212101201211220
4233123300022
511140400232
61122302510
7210456006
oct57336012
925351756
1012434442
1170231a9
1241b7a36
132764977
141919706
15115942c
hexbdbc0a

12434442 has 32 divisors (see below), whose sum is σ = 25900800. Its totient is φ = 3976128.

The previous prime is 12434369. The next prime is 12434447. The reversal of 12434442 is 24443421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12434447) 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 15 ways as a sum of consecutive naturals, for example, 17184 + ... + 17892.

It is an arithmetic number, because the mean of its divisors is an integer number (809400).

Almost surely, 212434442 is an apocalyptic number.

12434442 is an abundant number, since it is smaller than the sum of its proper divisors (13466358).

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

12434442 is a wasteful number, since it uses less digits than its factorization.

12434442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its digits is 3072, while the sum is 24.

The square root of 12434442 is about 3526.2504165189. The cubic root of 12434442 is about 231.6730059396.

Adding to 12434442 its reverse (24443421), we get a palindrome (36877863).

The spelling of 12434442 in words is "twelve million, four hundred thirty-four thousand, four hundred forty-two".

Divisors: 1 2 3 6 37 74 79 111 158 222 237 474 709 1418 2127 2923 4254 5846 8769 17538 26233 52466 56011 78699 112022 157398 168033 336066 2072407 4144814 6217221 12434442