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12288133 = 111385931
BaseRepresentation
bin101110111000…
…000010000101
3212010022011001
4232320002011
511121210013
61115213301
7206306314
oct56700205
925108131
1012288133
116a33290
124147231
1327131b0
1418bc27b
15112addd
hexbb8085

12288133 has 8 divisors (see below), whose sum is σ = 14436576. Its totient is φ = 10311600.

The previous prime is 12288119. The next prime is 12288137. The reversal of 12288133 is 33188221.

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

It is a de Polignac number, because none of the positive numbers 2k-12288133 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12288137) 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, 42823 + ... + 43108.

It is an arithmetic number, because the mean of its divisors is an integer number (1804572).

Almost surely, 212288133 is an apocalyptic number.

12288133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12288133 is a deficient number, since it is larger than the sum of its proper divisors (2148443).

12288133 is a wasteful number, since it uses less digits than its factorization.

12288133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85955.

The product of its digits is 2304, while the sum is 28.

The square root of 12288133 is about 3505.4433385807. The cubic root of 12288133 is about 230.7607637948.

It can be divided in two parts, 12288 and 133, that added together give a palindrome (12421).

The spelling of 12288133 in words is "twelve million, two hundred eighty-eight thousand, one hundred thirty-three".

Divisors: 1 11 13 143 85931 945241 1117103 12288133