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16889245 = 5172353163
BaseRepresentation
bin100000001101…
…1010110011101
31011210001200121
41000123112131
513310423440
61401554541
7263361532
oct100332635
934701617
1016889245
11959615a
1257a5a51
133664549
142358d89
15173934a
hex101b59d

16889245 has 32 divisors (see below), whose sum is σ = 22954752. Its totient is φ = 11860992.

The previous prime is 16889221. The next prime is 16889251. The reversal of 16889245 is 54298861.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16889245 - 211 = 16887197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103534 + ... + 103696.

It is an arithmetic number, because the mean of its divisors is an integer number (717336).

Almost surely, 216889245 is an apocalyptic number.

It is an amenable number.

16889245 is a deficient number, since it is larger than the sum of its proper divisors (6065507).

16889245 is a wasteful number, since it uses less digits than its factorization.

16889245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261.

The product of its digits is 138240, while the sum is 43.

The square root of 16889245 is about 4109.6526617222. The cubic root of 16889245 is about 256.5685453540.

The spelling of 16889245 in words is "sixteen million, eight hundred eighty-nine thousand, two hundred forty-five".

Divisors: 1 5 17 23 53 85 115 163 265 391 815 901 1219 1955 2771 3749 4505 6095 8639 13855 18745 20723 43195 63733 103615 146863 198697 318665 734315 993485 3377849 16889245