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16053985 = 57997419
BaseRepresentation
bin111101001111…
…011011100001
31010012121221001
4331033123201
513102211420
61332032001
7253312423
oct75173341
933177831
1016053985
119075662
125462601
1334312cc
1421bc813
151621b0a
hexf4f6e1

16053985 has 16 divisors (see below), whose sum is σ = 19756800. Its totient is φ = 12519936.

The previous prime is 16053979. The next prime is 16053997. The reversal of 16053985 is 58935061.

It is a cyclic number.

It is not a de Polignac number, because 16053985 - 29 = 16053473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38106 + ... + 38524.

It is an arithmetic number, because the mean of its divisors is an integer number (1234800).

Almost surely, 216053985 is an apocalyptic number.

It is an amenable number.

16053985 is a deficient number, since it is larger than the sum of its proper divisors (3702815).

16053985 is an equidigital number, since it uses as much as digits as its factorization.

16053985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 16053985 is about 4006.7424424338. The cubic root of 16053985 is about 252.2672953259.

It can be divided in two parts, 160 and 53985, that added together give a palindrome (54145).

The spelling of 16053985 in words is "sixteen million, fifty-three thousand, nine hundred eighty-five".

Divisors: 1 5 79 97 395 419 485 2095 7663 33101 38315 40643 165505 203215 3210797 16053985