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16061289 = 319281777
BaseRepresentation
bin111101010001…
…001101101001
31010012222221120
4331101031221
513102430124
61332125453
7253342626
oct75211551
933188846
1016061289
1190800a2
125466889
13343472a
1421c134d
151623d79
hexf51369

16061289 has 8 divisors (see below), whose sum is σ = 22542240. Its totient is φ = 10143936.

The previous prime is 16061281. The next prime is 16061303. The reversal of 16061289 is 98216061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16061289 - 23 = 16061281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16061281) 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 7 ways as a sum of consecutive naturals, for example, 140832 + ... + 140945.

It is an arithmetic number, because the mean of its divisors is an integer number (2817780).

Almost surely, 216061289 is an apocalyptic number.

16061289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

16061289 is a deficient number, since it is larger than the sum of its proper divisors (6480951).

16061289 is a wasteful number, since it uses less digits than its factorization.

16061289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281799.

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

The square root of 16061289 is about 4007.6538024136. The cubic root of 16061289 is about 252.3055471154.

The spelling of 16061289 in words is "sixteen million, sixty-one thousand, two hundred eighty-nine".

Divisors: 1 3 19 57 281777 845331 5353763 16061289