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12094905 = 351747431
BaseRepresentation
bin101110001000…
…110110111001
3211202111002110
4232020312321
511044014110
61111122533
7204543054
oct56106671
924674073
1012094905
116911099
124073449
132676264
14186ba9b
1510dda20
hexb88db9

12094905 has 16 divisors (see below), whose sum is σ = 20490624. Its totient is φ = 6071040.

The previous prime is 12094903. The next prime is 12094913. The reversal of 12094905 is 50949021.

It is a happy number.

It is not a de Polignac number, because 12094905 - 21 = 12094903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12094903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23461 + ... + 23970.

It is an arithmetic number, because the mean of its divisors is an integer number (1280664).

Almost surely, 212094905 is an apocalyptic number.

12094905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12094905 is a deficient number, since it is larger than the sum of its proper divisors (8395719).

12094905 is a wasteful number, since it uses less digits than its factorization.

12094905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47456.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12094905 is about 3477.7729943169. The cubic root of 12094905 is about 229.5448149391.

The spelling of 12094905 in words is "twelve million, ninety-four thousand, nine hundred five".

Divisors: 1 3 5 15 17 51 85 255 47431 142293 237155 711465 806327 2418981 4031635 12094905