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16074985 = 53214997
BaseRepresentation
bin111101010100…
…100011101001
31010020200201211
4331110203221
513103344420
61332313121
7253430563
oct75244351
933220654
1016074985
11908a413
1254727a1
13343aa34
1421c6333
151627e5a
hexf548e9

16074985 has 4 divisors (see below), whose sum is σ = 19289988. Its totient is φ = 12859984.

The previous prime is 16074977. The next prime is 16074997. The reversal of 16074985 is 58947061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9709456 + 6365529 = 3116^2 + 2523^2 .

It is a cyclic number.

It is not a de Polignac number, because 16074985 - 23 = 16074977 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607494 + ... + 1607503.

It is an arithmetic number, because the mean of its divisors is an integer number (4822497).

Almost surely, 216074985 is an apocalyptic number.

It is an amenable number.

16074985 is a deficient number, since it is larger than the sum of its proper divisors (3215003).

16074985 is an equidigital number, since it uses as much as digits as its factorization.

16074985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215002.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 16074985 is about 4009.3621687246. The cubic root of 16074985 is about 252.3772432084.

The spelling of 16074985 in words is "sixteen million, seventy-four thousand, nine hundred eighty-five".

Divisors: 1 5 3214997 16074985