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12075287 = 717247127
BaseRepresentation
bin101110000100…
…000100010111
3211201111011212
4232010010113
511042402122
61110452035
7204431630
oct56040427
924644155
1012075287
1168a8384
12406401b
13266a353
141864887
1510d7ce2
hexb84117

12075287 has 24 divisors (see below), whose sum is σ = 15089664. Its totient is φ = 9459072.

The previous prime is 12075277. The next prime is 12075289. The reversal of 12075287 is 78257021.

It is not a de Polignac number, because 12075287 - 28 = 12075031 is a prime.

It is a super-2 number, since 2×120752872 = 291625112264738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12075289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95018 + ... + 95144.

It is an arithmetic number, because the mean of its divisors is an integer number (628736).

Almost surely, 212075287 is an apocalyptic number.

12075287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12075287 is a deficient number, since it is larger than the sum of its proper divisors (3014377).

12075287 is a wasteful number, since it uses less digits than its factorization.

12075287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 12075287 is about 3474.9513665662. The cubic root of 12075287 is about 229.4206401421.

The spelling of 12075287 in words is "twelve million, seventy-five thousand, two hundred eighty-seven".

Divisors: 1 7 17 47 119 127 289 329 799 889 2023 2159 5593 5969 13583 15113 36703 41783 95081 101473 256921 710311 1725041 12075287