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16054321 = 122313127
BaseRepresentation
bin111101001111…
…100000110001
31010012122101111
4331033200301
513102214241
61332033321
7253313413
oct75174061
933178344
1016054321
119075938
125462841
1334314ca
1421bc9b3
151621c81
hexf4f831

16054321 has 4 divisors (see below), whose sum is σ = 16068672. Its totient is φ = 16039972.

The previous prime is 16054279. The next prime is 16054397. The reversal of 16054321 is 12345061.

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: 12345061 = 19736257.

It is a cyclic number.

It is not a de Polignac number, because 16054321 - 27 = 16054193 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16054292 and 16054301.

It is not an unprimeable number, because it can be changed into a prime (16054021) 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, 5341 + ... + 7786.

It is an arithmetic number, because the mean of its divisors is an integer number (4017168).

Almost surely, 216054321 is an apocalyptic number.

It is an amenable number.

16054321 is a deficient number, since it is larger than the sum of its proper divisors (14351).

16054321 is a wasteful number, since it uses less digits than its factorization.

16054321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14350.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 16054321 is about 4006.7843715379. The cubic root of 16054321 is about 252.2690552466.

Adding to 16054321 its reverse (12345061), we get a palindrome (28399382).

The spelling of 16054321 in words is "sixteen million, fifty-four thousand, three hundred twenty-one".

Divisors: 1 1223 13127 16054321