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12428195 = 513712693
BaseRepresentation
bin101111011010…
…001110100011
3212101102021112
4233122032203
511140200240
61122213535
7210431543
oct57321643
925342245
1012428195
11701953a
1241b42ab
132761b80
141917323
151157665
hexbda3a3

12428195 has 16 divisors (see below), whose sum is σ = 16293312. Its totient is φ = 9045120.

The previous prime is 12428191. The next prime is 12428197. The reversal of 12428195 is 59182421.

It is not a de Polignac number, because 12428195 - 22 = 12428191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12428191) 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, 3269 + ... + 5961.

It is an arithmetic number, because the mean of its divisors is an integer number (1018332).

Almost surely, 212428195 is an apocalyptic number.

12428195 is a deficient number, since it is larger than the sum of its proper divisors (3865117).

12428195 is a wasteful number, since it uses less digits than its factorization.

12428195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782.

The product of its digits is 5760, while the sum is 32.

The square root of 12428195 is about 3525.3645201596. The cubic root of 12428195 is about 231.6342023300.

The spelling of 12428195 in words is "twelve million, four hundred twenty-eight thousand, one hundred ninety-five".

Divisors: 1 5 13 65 71 355 923 2693 4615 13465 35009 175045 191203 956015 2485639 12428195