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16012047 = 35337349
BaseRepresentation
bin111101000101…
…001100001111
31010010111101210
4331011030033
513044341142
61331105503
7253046232
oct75051417
933114353
1016012047
1190470a7
125442293
1334181ac
1421ab419
15161449c
hexf4530f

16012047 has 4 divisors (see below), whose sum is σ = 21349400. Its totient is φ = 10674696.

The previous prime is 16012037. The next prime is 16012049. The reversal of 16012047 is 74021061.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16012047 - 28 = 16011791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16012049) 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, 2668672 + ... + 2668677.

It is an arithmetic number, because the mean of its divisors is an integer number (5337350).

Almost surely, 216012047 is an apocalyptic number.

16012047 is a deficient number, since it is larger than the sum of its proper divisors (5337353).

16012047 is an equidigital number, since it uses as much as digits as its factorization.

16012047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337352.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 16012047 is about 4001.5055916492. The cubic root of 16012047 is about 252.0474369000.

The spelling of 16012047 in words is "sixteen million, twelve thousand, forty-seven".

Divisors: 1 3 5337349 16012047