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12488481 = 323833623
BaseRepresentation
bin101111101000…
…111100100001
3212111110222100
4233220330201
511144112411
61123401013
7211102365
oct57507441
925443870
1012488481
11705a865
124223169
132783445
1419312a5
15116a456
hexbe8f21

12488481 has 12 divisors (see below), whose sum is σ = 18091008. Its totient is φ = 8301624.

The previous prime is 12488479. The next prime is 12488501. The reversal of 12488481 is 18488421.

It is a happy number.

It is not a de Polignac number, because 12488481 - 21 = 12488479 is a prime.

It is a super-2 number, since 2×124884812 = 311924315374722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12488431) 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 11 ways as a sum of consecutive naturals, for example, 1636 + ... + 5258.

It is an arithmetic number, because the mean of its divisors is an integer number (1507584).

Almost surely, 212488481 is an apocalyptic number.

It is an amenable number.

12488481 is a deficient number, since it is larger than the sum of its proper divisors (5602527).

12488481 is a wasteful number, since it uses less digits than its factorization.

12488481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012 (or 4009 counting only the distinct ones).

The product of its digits is 16384, while the sum is 36.

The square root of 12488481 is about 3533.9044978607. The cubic root of 12488481 is about 232.0081311558.

The spelling of 12488481 in words is "twelve million, four hundred eighty-eight thousand, four hundred eighty-one".

Divisors: 1 3 9 383 1149 3447 3623 10869 32607 1387609 4162827 12488481