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12874393 = 73179751
BaseRepresentation
bin110001000111…
…001010011001
3220020002100101
4301013022121
511243440033
61135535401
7214300450
oct61071231
926202311
1012874393
1172a37a4
12438a561
132889cac
1419d1b97
1511e497d
hexc47299

12874393 has 16 divisors (see below), whose sum is σ = 15400960. Its totient is φ = 10530000.

The previous prime is 12874391. The next prime is 12874403. The reversal of 12874393 is 39347821.

It is a cyclic number.

It is not a de Polignac number, because 12874393 - 21 = 12874391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12874391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16768 + ... + 17518.

It is an arithmetic number, because the mean of its divisors is an integer number (962560).

Almost surely, 212874393 is an apocalyptic number.

It is an amenable number.

12874393 is a deficient number, since it is larger than the sum of its proper divisors (2526567).

12874393 is an equidigital number, since it uses as much as digits as its factorization.

12874393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868.

The product of its digits is 36288, while the sum is 37.

The square root of 12874393 is about 3588.0904392169. The cubic root of 12874393 is about 234.3737240345.

The spelling of 12874393 in words is "twelve million, eight hundred seventy-four thousand, three hundred ninety-three".

Divisors: 1 7 31 79 217 553 751 2449 5257 17143 23281 59329 162967 415303 1839199 12874393