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12384889 = 111125899
BaseRepresentation
bin101111001111…
…101001111001
3212022012212121
4233033221321
511132304024
61121241241
7210161356
oct57175171
925265777
1012384889
116a99a50
124193221
13274824a
14190562d
1511498e4
hexbcfa79

12384889 has 4 divisors (see below), whose sum is σ = 13510800. Its totient is φ = 11258980.

The previous prime is 12384877. The next prime is 12384917. The reversal of 12384889 is 98848321.

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.

It is a cyclic number.

It is not a de Polignac number, because 12384889 - 211 = 12382841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12384809) 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, 562939 + ... + 562960.

It is an arithmetic number, because the mean of its divisors is an integer number (3377700).

Almost surely, 212384889 is an apocalyptic number.

It is an amenable number.

12384889 is a deficient number, since it is larger than the sum of its proper divisors (1125911).

12384889 is a wasteful number, since it uses less digits than its factorization.

12384889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125910.

The product of its digits is 110592, while the sum is 43.

The square root of 12384889 is about 3519.2171004358. The cubic root of 12384889 is about 231.3648463872.

The spelling of 12384889 in words is "twelve million, three hundred eighty-four thousand, eight hundred eighty-nine".

Divisors: 1 11 1125899 12384889