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12004685 = 571131181
BaseRepresentation
bin101101110010…
…110101001101
3211120220022222
4231302311031
511033122220
61105145125
7204016040
oct55626515
924526288
1012004685
11685a330
12402b1a5
132644184
141846c57
1510c1e25
hexb72d4d

12004685 has 16 divisors (see below), whose sum is σ = 17960832. Its totient is φ = 7483200.

The previous prime is 12004679. The next prime is 12004711. The reversal of 12004685 is 58640021.

It is not a de Polignac number, because 12004685 - 222 = 7810381 is a prime.

It is a super-2 number, since 2×120046852 = 288224923898450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15206 + ... + 15975.

It is an arithmetic number, because the mean of its divisors is an integer number (1122552).

Almost surely, 212004685 is an apocalyptic number.

It is an amenable number.

12004685 is a deficient number, since it is larger than the sum of its proper divisors (5956147).

12004685 is a wasteful number, since it uses less digits than its factorization.

12004685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31204.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 12004685 is about 3464.7777706514. Note that the first 5 decimals coincide. The cubic root of 12004685 is about 228.9726390020.

It can be divided in two parts, 1200 and 4685, that added together give a palindrome (5885).

The spelling of 12004685 in words is "twelve million, four thousand, six hundred eighty-five".

Divisors: 1 5 7 11 35 55 77 385 31181 155905 218267 342991 1091335 1714955 2400937 12004685