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12425487 = 3171912823
BaseRepresentation
bin101111011001…
…100100001111
3212101021120020
4233121210033
511140103422
61122153223
7210420624
oct57314417
925337506
1012425487
1170174a8
1241b2813
132760879
14191634b
15115695c
hexbd990f

12425487 has 16 divisors (see below), whose sum is σ = 18466560. Its totient is φ = 7385472.

The previous prime is 12425477. The next prime is 12425503. The reversal of 12425487 is 78452421.

12425487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12425487 - 24 = 12425471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12425417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5443 + ... + 7380.

It is an arithmetic number, because the mean of its divisors is an integer number (1154160).

Almost surely, 212425487 is an apocalyptic number.

12425487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12425487 is a deficient number, since it is larger than the sum of its proper divisors (6041073).

12425487 is a wasteful number, since it uses less digits than its factorization.

12425487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12862.

The product of its digits is 17920, while the sum is 33.

The square root of 12425487 is about 3524.9804254776. The cubic root of 12425487 is about 231.6173773879.

The spelling of 12425487 in words is "twelve million, four hundred twenty-five thousand, four hundred eighty-seven".

Divisors: 1 3 17 19 51 57 323 969 12823 38469 217991 243637 653973 730911 4141829 12425487