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16280916 = 2231356743
BaseRepresentation
bin111110000110…
…110101010100
31010122011012220
4332012311110
513131442131
61340542340
7255246141
oct76066524
933564186
1016280916
119210103
1255519b0
1334b06a2
14223b3c8
151668e96
hexf86d54

16280916 has 12 divisors (see below), whose sum is σ = 37988832. Its totient is φ = 5426968.

The previous prime is 16280903. The next prime is 16280959. The reversal of 16280916 is 61908261.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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, 678360 + ... + 678383.

It is an arithmetic number, because the mean of its divisors is an integer number (3165736).

Almost surely, 216280916 is an apocalyptic number.

It is an amenable number.

16280916 is an abundant number, since it is smaller than the sum of its proper divisors (21707916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16280916 is a wasteful number, since it uses less digits than its factorization.

16280916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356750 (or 1356748 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 16280916 is about 4034.9617098555. The cubic root of 16280916 is about 253.4503791241.

The spelling of 16280916 in words is "sixteen million, two hundred eighty thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 1356743 2713486 4070229 5426972 8140458 16280916