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12088404 = 2232409821
BaseRepresentation
bin101110000111…
…010001010100
3211202011011200
4232013101110
511043312104
61111032500
7204515106
oct56072124
924664150
1012088404
116907219
12406b730
132673303
141869576
1510dbb39
hexb87454

12088404 has 36 divisors (see below), whose sum is σ = 30668820. Its totient is φ = 4014720.

The previous prime is 12088403. The next prime is 12088429. The reversal of 12088404 is 40488021.

It can be written as a sum of positive squares in 2 ways, for example, as 7551504 + 4536900 = 2748^2 + 2130^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×120884042 = 292259022534432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12088403) 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 11 ways as a sum of consecutive naturals, for example, 14314 + ... + 15134.

Almost surely, 212088404 is an apocalyptic number.

It is an amenable number.

12088404 is an abundant number, since it is smaller than the sum of its proper divisors (18580416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12088404 is a wasteful number, since it uses less digits than its factorization.

12088404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1235 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 12088404 is about 3476.8382188419. The cubic root of 12088404 is about 229.5036808614.

The spelling of 12088404 in words is "twelve million, eighty-eight thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 409 818 821 1227 1636 1642 2454 2463 3284 3681 4908 4926 7362 7389 9852 14724 14778 29556 335789 671578 1007367 1343156 2014734 3022101 4029468 6044202 12088404