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12305046 = 231319323
BaseRepresentation
bin101110111100…
…001010010110
3212011011100110
4232330022112
511122230141
61115423450
7206406525
oct56741226
925134313
1012305046
116a44a66
124154b86
13271aac0
1418c44bc
151130e16
hexbbc296

12305046 has 64 divisors (see below), whose sum is σ = 29191680. Its totient is φ = 3430944.

The previous prime is 12305039. The next prime is 12305057. The reversal of 12305046 is 64050321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 534991 + ... + 535013.

It is an arithmetic number, because the mean of its divisors is an integer number (456120).

Almost surely, 212305046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12305046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14595840).

12305046 is an abundant number, since it is smaller than the sum of its proper divisors (16886634).

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

12305046 is a wasteful number, since it uses less digits than its factorization.

12305046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 12305046 is about 3507.8549000778. The cubic root of 12305046 is about 230.8665858801.

Adding to 12305046 its reverse (64050321), we get a palindrome (76355367).

The spelling of 12305046 in words is "twelve million, three hundred five thousand, forty-six".

Divisors: 1 2 3 6 13 19 23 26 38 39 46 57 69 78 114 138 247 299 361 437 494 598 722 741 874 897 1083 1311 1482 1794 2166 2622 4693 5681 6859 8303 9386 11362 13718 14079 16606 17043 20577 24909 28158 34086 41154 49818 89167 107939 157757 178334 215878 267501 315514 323817 473271 535002 647634 946542 2050841 4101682 6152523 12305046