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16889383 = 72324561
BaseRepresentation
bin100000001101…
…1011000100111
31011210001212201
41000123120213
513310430013
61401555331
7263362120
oct100333047
934701781
1016889383
119596275
1257a5b47
133664624
142359047
1517393dd
hex101b627

16889383 has 12 divisors (see below), whose sum is σ = 20182288. Its totient is φ = 13844160.

The previous prime is 16889371. The next prime is 16889387. The reversal of 16889383 is 38398861.

It is not a de Polignac number, because 16889383 - 213 = 16881191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16889387) 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 11 ways as a sum of consecutive naturals, for example, 1423 + ... + 5983.

Almost surely, 216889383 is an apocalyptic number.

16889383 is a deficient number, since it is larger than the sum of its proper divisors (3292905).

16889383 is an equidigital number, since it uses as much as digits as its factorization.

16889383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614 (or 4591 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 16889383 is about 4109.6694514279. The cubic root of 16889383 is about 256.5692441491.

The spelling of 16889383 in words is "sixteen million, eight hundred eighty-nine thousand, three hundred eighty-three".

Divisors: 1 7 23 161 529 3703 4561 31927 104903 734321 2412769 16889383