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12331413 = 33597741
BaseRepresentation
bin101111000010…
…100110010101
3212012111112000
4233002212111
511124101123
61120145513
7206546433
oct57024625
925174460
1012331413
116a62856
124168299
132729ac3
1418cdd53
151138b43
hexbc2995

12331413 has 16 divisors (see below), whose sum is σ = 18580800. Its totient is φ = 8080560.

The previous prime is 12331391. The next prime is 12331441. The reversal of 12331413 is 31413321.

12331413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12331413 - 28 = 12331157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2278 + ... + 5463.

It is an arithmetic number, because the mean of its divisors is an integer number (1161300).

Almost surely, 212331413 is an apocalyptic number.

It is an amenable number.

12331413 is a deficient number, since it is larger than the sum of its proper divisors (6249387).

12331413 is an equidigital number, since it uses as much as digits as its factorization.

12331413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7809 (or 7803 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 12331413 is about 3511.6111686803. The cubic root of 12331413 is about 231.0313669667.

Adding to 12331413 its reverse (31413321), we get a palindrome (43744734).

The spelling of 12331413 in words is "twelve million, three hundred thirty-one thousand, four hundred thirteen".

Divisors: 1 3 9 27 59 177 531 1593 7741 23223 69669 209007 456719 1370157 4110471 12331413