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12143201 = 75371461
BaseRepresentation
bin101110010100…
…101001100001
3211211221100012
4232110221201
511102040301
61112134305
7205133630
oct56245141
924757305
1012143201
116944404
124097395
132692235
141881517
1510ecebb
hexb94a61

12143201 has 16 divisors (see below), whose sum is σ = 14370048. Its totient is φ = 10046400.

The previous prime is 12143189. The next prime is 12143221. The reversal of 12143201 is 10234121.

It is not a de Polignac number, because 12143201 - 26 = 12143137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12143221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26111 + ... + 26571.

It is an arithmetic number, because the mean of its divisors is an integer number (898128).

Almost surely, 212143201 is an apocalyptic number.

It is an amenable number.

12143201 is a deficient number, since it is larger than the sum of its proper divisors (2226847).

12143201 is an equidigital number, since it uses as much as digits as its factorization.

12143201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12143201 is about 3484.7096005263. The cubic root of 12143201 is about 229.8499399240.

Adding to 12143201 its reverse (10234121), we get a palindrome (22377322).

The spelling of 12143201 in words is "twelve million, one hundred forty-three thousand, two hundred one".

Divisors: 1 7 53 71 371 461 497 3227 3763 24433 26341 32731 171031 229117 1734743 12143201