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12004928 = 261347307
BaseRepresentation
bin101101110010…
…111001000000
3211120220122222
4231302321000
511033124203
61105150212
7204016535
oct55627100
924526588
1012004928
11685a531
12402b368
132644310
141846d8c
1510c2038
hexb72e40

12004928 has 56 divisors (see below), whose sum is σ = 26285952. Its totient is φ = 5405184.

The previous prime is 12004921. The next prime is 12004957. The reversal of 12004928 is 82940021.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 12004897 and 12004906.

It is not an unprimeable number, because it can be changed into a prime (12004921) 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 7 ways as a sum of consecutive naturals, for example, 38951 + ... + 39257.

It is an arithmetic number, because the mean of its divisors is an integer number (469392).

Almost surely, 212004928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12004928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13142976).

12004928 is an abundant number, since it is smaller than the sum of its proper divisors (14281024).

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

12004928 is a wasteful number, since it uses less digits than its factorization.

12004928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 12004928 is about 3464.8128376580. The cubic root of 12004928 is about 228.9741839537.

Adding to 12004928 its reverse (82940021), we get a palindrome (94944949).

The spelling of 12004928 in words is "twelve million, four thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 13 16 26 32 47 52 64 94 104 188 208 307 376 416 611 614 752 832 1222 1228 1504 2444 2456 3008 3991 4888 4912 7982 9776 9824 14429 15964 19552 19648 28858 31928 39104 57716 63856 115432 127712 187577 230864 255424 375154 461728 750308 923456 1500616 3001232 6002464 12004928