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12040988 = 2289149227
BaseRepresentation
bin101101111011…
…101100011100
3211122202010112
4231323230130
511040302423
61110025152
7204226631
oct55735434
924582115
1012040988
116884633
1240481b8
13265785b
141856188
1510cca78
hexb7bb1c

12040988 has 24 divisors (see below), whose sum is σ = 21546000. Its totient is φ = 5886848.

The previous prime is 12040969. The next prime is 12040999. The reversal of 12040988 is 88904021.

It is a happy number.

It is a super-2 number, since 2×120409882 = 289970784032288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52931 + ... + 53157.

It is an arithmetic number, because the mean of its divisors is an integer number (897750).

Almost surely, 212040988 is an apocalyptic number.

It is an amenable number.

12040988 is a deficient number, since it is larger than the sum of its proper divisors (9505012).

12040988 is a wasteful number, since it uses less digits than its factorization.

12040988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 12040988 is about 3470.0126800921. The cubic root of 12040988 is about 229.2032164440.

The spelling of 12040988 in words is "twelve million, forty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 89 149 178 227 298 356 454 596 908 13261 20203 26522 33823 40406 53044 67646 80812 135292 3010247 6020494 12040988