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12585470 = 254492803
BaseRepresentation
bin110000000000…
…100111111110
3212200102000112
4300000213332
511210213340
61125430022
7211655222
oct60004776
925612015
1012585470
117116717
12426b312
1327b8631
141958782
151189065
hexc009fe

12585470 has 16 divisors (see below), whose sum is σ = 22712400. Its totient is φ = 5021184.

The previous prime is 12585431. The next prime is 12585479. The reversal of 12585470 is 7458521.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12585479) 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, 3089 + ... + 5891.

It is an arithmetic number, because the mean of its divisors is an integer number (1419525).

Almost surely, 212585470 is an apocalyptic number.

12585470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12585470 is a deficient number, since it is larger than the sum of its proper divisors (10126930).

12585470 is a wasteful number, since it uses less digits than its factorization.

12585470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 12585470 is about 3547.6005975871. The cubic root of 12585470 is about 232.6071961077.

The spelling of 12585470 in words is "twelve million, five hundred eighty-five thousand, four hundred seventy".

Divisors: 1 2 5 10 449 898 2245 2803 4490 5606 14015 28030 1258547 2517094 6292735 12585470