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12049417 = 43280219
BaseRepresentation
bin101101111101…
…110000001001
3211200011200201
4231331300021
511041040132
61110132201
7204263332
oct55756011
924604621
1012049417
11688a9a6
124051061
13265b643
141859289
1510d02e7
hexb7dc09

12049417 has 4 divisors (see below), whose sum is σ = 12329680. Its totient is φ = 11769156.

The previous prime is 12049399. The next prime is 12049423. The reversal of 12049417 is 71494021.

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 a de Polignac number, because none of the positive numbers 2k-12049417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12049717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140067 + ... + 140152.

It is an arithmetic number, because the mean of its divisors is an integer number (3082420).

Almost surely, 212049417 is an apocalyptic number.

It is an amenable number.

12049417 is a deficient number, since it is larger than the sum of its proper divisors (280263).

12049417 is an equidigital number, since it uses as much as digits as its factorization.

12049417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280262.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12049417 is about 3471.2270164885. The cubic root of 12049417 is about 229.2566866764.

The spelling of 12049417 in words is "twelve million, forty-nine thousand, four hundred seventeen".

Divisors: 1 43 280219 12049417