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12425205 = 351363719
BaseRepresentation
bin101111011001…
…011111110101
3212101021011210
4233121133311
511140101310
61122152033
7210420042
oct57313765
925337153
1012425205
117017271
1241b2619
1327606c0
1419161c9
151156820
hexbd97f5

12425205 has 16 divisors (see below), whose sum is σ = 21409920. Its totient is φ = 6116928.

The previous prime is 12425197. The next prime is 12425207. The reversal of 12425205 is 50252421.

It is a happy number.

It is not a de Polignac number, because 12425205 - 23 = 12425197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12425207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31665 + ... + 32054.

It is an arithmetic number, because the mean of its divisors is an integer number (1338120).

Almost surely, 212425205 is an apocalyptic number.

12425205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12425205 is a deficient number, since it is larger than the sum of its proper divisors (8984715).

12425205 is a wasteful number, since it uses less digits than its factorization.

12425205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63740.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 12425205 is about 3524.9404250285. The cubic root of 12425205 is about 231.6156251669.

Adding to 12425205 its reverse (50252421), we get a palindrome (62677626).

The spelling of 12425205 in words is "twelve million, four hundred twenty-five thousand, two hundred five".

Divisors: 1 3 5 13 15 39 65 195 63719 191157 318595 828347 955785 2485041 4141735 12425205