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12351331 = 891071297
BaseRepresentation
bin101111000111…
…011101100011
3212020111211201
4233013131203
511130220311
61120422031
7206661466
oct57073543
925214751
1012351331
116a76813
124177917
132735ba5
1418d72dd
15113e9c1
hexbc7763

12351331 has 8 divisors (see below), whose sum is σ = 12616560. Its totient is φ = 12089088.

The previous prime is 12351329. The next prime is 12351343. The reversal of 12351331 is 13315321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12351331 - 21 = 12351329 is a prime.

It is a super-2 number, since 2×123513312 = 305110754943122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12351299 and 12351308.

It is not an unprimeable number, because it can be changed into a prime (12351371) 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, 8875 + ... + 10171.

It is an arithmetic number, because the mean of its divisors is an integer number (1577070).

Almost surely, 212351331 is an apocalyptic number.

12351331 is a deficient number, since it is larger than the sum of its proper divisors (265229).

12351331 is a wasteful number, since it uses less digits than its factorization.

12351331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493.

The product of its digits is 270, while the sum is 19.

The square root of 12351331 is about 3514.4460445424. The cubic root of 12351331 is about 231.1556892269.

Adding to 12351331 its reverse (13315321), we get a palindrome (25666652).

The spelling of 12351331 in words is "twelve million, three hundred fifty-one thousand, three hundred thirty-one".

Divisors: 1 89 107 1297 9523 115433 138779 12351331