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12080475 = 3352111627
BaseRepresentation
bin101110000101…
…010101011011
3211201202022000
4232011111123
511043033400
61110532043
7204453021
oct56052533
924652260
1012080475
116901270
124067023
13266c814
141866711
1510d9600
hexb8555b

12080475 has 48 divisors (see below), whose sum is σ = 24224640. Its totient is φ = 5853600.

The previous prime is 12080459. The next prime is 12080479. The reversal of 12080475 is 57408021.

It is not a de Polignac number, because 12080475 - 24 = 12080459 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12080479) 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 47 ways as a sum of consecutive naturals, for example, 6612 + ... + 8238.

It is an arithmetic number, because the mean of its divisors is an integer number (504680).

Almost surely, 212080475 is an apocalyptic number.

12080475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12080475 is an abundant number, since it is smaller than the sum of its proper divisors (12144165).

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

12080475 is a wasteful number, since it uses less digits than its factorization.

12080475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12080475 is about 3475.6977716712. The cubic root of 12080475 is about 229.4534913659.

Adding to 12080475 its reverse (57408021), we get a palindrome (69488496).

The spelling of 12080475 in words is "twelve million, eighty thousand, four hundred seventy-five".

Divisors: 1 3 5 9 11 15 25 27 33 45 55 75 99 135 165 225 275 297 495 675 825 1485 1627 2475 4881 7425 8135 14643 17897 24405 40675 43929 53691 73215 89485 122025 161073 219645 268455 366075 447425 483219 805365 1098225 1342275 2416095 4026825 12080475