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12061361 = 1322329107
BaseRepresentation
bin101110000000…
…101010110001
3211200210002002
4232000222301
511041430421
61110303345
7204343214
oct56005261
924623062
1012061361
116898974
124057b55
132663c00
14185d77b
1510d3b0b
hexb80ab1

12061361 has 24 divisors (see below), whose sum is σ = 14230080. Its totient is φ = 10186176.

The previous prime is 12061351. The next prime is 12061367. The reversal of 12061361 is 16316021.

It is not a de Polignac number, because 12061361 - 210 = 12060337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12061367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112670 + ... + 112776.

It is an arithmetic number, because the mean of its divisors is an integer number (592920).

Almost surely, 212061361 is an apocalyptic number.

It is an amenable number.

12061361 is a deficient number, since it is larger than the sum of its proper divisors (2168719).

12061361 is a wasteful number, since it uses less digits than its factorization.

12061361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12061361 is about 3472.9470194634. The cubic root of 12061361 is about 229.3324119889.

Adding to 12061361 its reverse (16316021), we get a palindrome (28377382).

The spelling of 12061361 in words is "twelve million, sixty-one thousand, three hundred sixty-one".

Divisors: 1 13 23 29 107 169 299 377 667 1391 2461 3103 3887 4901 8671 18083 31993 40339 71369 112723 415909 524407 927797 12061361