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12311412 = 2235917389
BaseRepresentation
bin101110111101…
…101101110100
3212011111002020
4232331231310
511122431122
61115513140
7206434221
oct56755564
925144066
1012311412
116a49823
1241587b0
132720979
1418c6948
151132c5c
hexbbdb74

12311412 has 24 divisors (see below), whose sum is σ = 29215200. Its totient is φ = 4034016.

The previous prime is 12311401. The next prime is 12311419. The reversal of 12311412 is 21411321.

Adding to 12311412 its reverse (21411321), we get a palindrome (33722733).

Subtracting 12311412 from its reverse (21411321), we obtain a palindrome (9099909).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12311391 and 12311400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7987 + ... + 9402.

It is an arithmetic number, because the mean of its divisors is an integer number (1217300).

Almost surely, 212311412 is an apocalyptic number.

12311412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12311412 is an abundant number, since it is smaller than the sum of its proper divisors (16903788).

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

12311412 is a wasteful number, since it uses less digits than its factorization.

12311412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17455 (or 17453 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 12311412 is about 3508.7621748987. The cubic root of 12311412 is about 230.9063918618.

The spelling of 12311412 in words is "twelve million, three hundred eleven thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 59 118 177 236 354 708 17389 34778 52167 69556 104334 208668 1025951 2051902 3077853 4103804 6155706 12311412