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16109023 = 7372412
BaseRepresentation
bin111101011100…
…110111011111
31010022102102111
4331130313133
513110442043
61333134451
7253632040
oct75346737
933272374
1016109023
119102a47
12548a427
133450388
1421d48c7
15163309d
hexf5cddf

16109023 has 18 divisors (see below), whose sum is σ = 19394088. Its totient is φ = 13106880.

The previous prime is 16109003. The next prime is 16109033. The reversal of 16109023 is 32090161.

It is not a de Polignac number, because 16109023 - 25 = 16108991 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16108985 and 16109003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16109003) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 392883 + ... + 392923.

Almost surely, 216109023 is an apocalyptic number.

16109023 is a deficient number, since it is larger than the sum of its proper divisors (3285065).

16109023 is an frugal number, since it uses more digits than its factorization.

16109023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 16109023 is about 4013.6047388850. The cubic root of 16109023 is about 252.5552498123. Note that the first 3 decimals are identical.

Adding to 16109023 its reverse (32090161), we get a palindrome (48199184).

The spelling of 16109023 in words is "sixteen million, one hundred nine thousand, twenty-three".

Divisors: 1 7 37 41 259 287 1369 1517 1681 9583 10619 11767 56129 62197 392903 435379 2301289 16109023