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16045985 = 510633019
BaseRepresentation
bin111101001101…
…011110100001
31010012012221202
4331031132201
513101432420
61331530545
7253250204
oct75153641
933165852
1016045985
11906a64a
125459a55
13342a787
1421b993b
15161e575
hexf4d7a1

16045985 has 8 divisors (see below), whose sum is σ = 19279680. Its totient is φ = 12820464.

The previous prime is 16045979. The next prime is 16045993. The reversal of 16045985 is 58954061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16045985 - 26 = 16045921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3806 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (2409960).

Almost surely, 216045985 is an apocalyptic number.

It is an amenable number.

16045985 is a deficient number, since it is larger than the sum of its proper divisors (3233695).

16045985 is a wasteful number, since it uses less digits than its factorization.

16045985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 16045985 is about 4005.7440008068. The cubic root of 16045985 is about 252.2253851983.

The spelling of 16045985 in words is "sixteen million, forty-five thousand, nine hundred eighty-five".

Divisors: 1 5 1063 3019 5315 15095 3209197 16045985