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16889013 = 331036073
BaseRepresentation
bin100000001101…
…1010010110101
31011210001101000
41000123102311
513310422023
61401553513
7263361051
oct100332265
934701330
1016889013
119595a69
1257a5899
1336643cb
142358c61
151739243
hex101b4b5

16889013 has 16 divisors (see below), whose sum is σ = 25267840. Its totient is φ = 11148192.

The previous prime is 16889011. The next prime is 16889021. The reversal of 16889013 is 31098861.

It is not a de Polignac number, because 16889013 - 21 = 16889011 is a prime.

It is a super-2 number, since 2×168890132 = 570477520228338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16889011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256 + ... + 5817.

It is an arithmetic number, because the mean of its divisors is an integer number (1579240).

Almost surely, 216889013 is an apocalyptic number.

It is an amenable number.

16889013 is a deficient number, since it is larger than the sum of its proper divisors (8378827).

16889013 is a wasteful number, since it uses less digits than its factorization.

16889013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6185 (or 6179 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 16889013 is about 4109.6244353955. The cubic root of 16889013 is about 256.5673705596.

It can be divided in two parts, 1688 and 9013, that added together give a palindrome (10701).

The spelling of 16889013 in words is "sixteen million, eight hundred eighty-nine thousand, thirteen".

Divisors: 1 3 9 27 103 309 927 2781 6073 18219 54657 163971 625519 1876557 5629671 16889013