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12055161 = 37156597
BaseRepresentation
bin101101111111…
…001001111001
3211200110120110
4231333021321
511041231121
61110214533
7204316146
oct55771171
924613513
1012055161
116894248
124054449
132661141
14185b3cd
1510d1d76
hexb7f279

12055161 has 8 divisors (see below), whose sum is σ = 16300224. Its totient is φ = 7923440.

The previous prime is 12055133. The next prime is 12055207. The reversal of 12055161 is 16155021.

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 12055161 - 215 = 12022393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12055361) 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, 28086 + ... + 28511.

It is an arithmetic number, because the mean of its divisors is an integer number (2037528).

Almost surely, 212055161 is an apocalyptic number.

It is an amenable number.

12055161 is a deficient number, since it is larger than the sum of its proper divisors (4245063).

12055161 is an equidigital number, since it uses as much as digits as its factorization.

12055161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56671.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 12055161 is about 3472.0542910502. The cubic root of 12055161 is about 229.2931100490.

The spelling of 12055161 in words is "twelve million, fifty-five thousand, one hundred sixty-one".

Divisors: 1 3 71 213 56597 169791 4018387 12055161