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12055393 = 71722199
BaseRepresentation
bin101101111111…
…001101100001
3211200110220001
4231333031201
511041233033
61110220001
7204316630
oct55771541
924613801
1012055393
116894439
124054601
13266128c
14185b517
1510d1e7d
hexb7f361

12055393 has 4 divisors (see below), whose sum is σ = 13777600. Its totient is φ = 10333188.

The previous prime is 12055391. The next prime is 12055409. The reversal of 12055393 is 39355021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39355021 = 67358477.

It is a cyclic number.

It is not a de Polignac number, because 12055393 - 21 = 12055391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12055391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861093 + ... + 861106.

It is an arithmetic number, because the mean of its divisors is an integer number (3444400).

Almost surely, 212055393 is an apocalyptic number.

It is an amenable number.

12055393 is a deficient number, since it is larger than the sum of its proper divisors (1722207).

12055393 is an equidigital number, since it uses as much as digits as its factorization.

12055393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722206.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 12055393 is about 3472.0877005053. The cubic root of 12055393 is about 229.2945809449.

The spelling of 12055393 in words is "twelve million, fifty-five thousand, three hundred ninety-three".

Divisors: 1 7 1722199 12055393