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16472887 = 17395219
BaseRepresentation
bin111110110101…
…101100110111
31010222220112221
4332311230313
513204113022
61345023211
7260005624
oct76655467
933886487
1016472887
119331362
125624b07
133549b92
14228b34b
1516a5cc7
hexfb5b37

16472887 has 4 divisors (see below), whose sum is σ = 16568280. Its totient is φ = 16377496.

The previous prime is 16472861. The next prime is 16472891. The reversal of 16472887 is 78827461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78827461 = 411922621.

It is a cyclic number.

It is not a de Polignac number, because 16472887 - 27 = 16472759 is a prime.

It is a super-2 number, since 2×164728872 = 542712012229538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16472837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47437 + ... + 47782.

It is an arithmetic number, because the mean of its divisors is an integer number (4142070).

Almost surely, 216472887 is an apocalyptic number.

16472887 is a deficient number, since it is larger than the sum of its proper divisors (95393).

16472887 is an equidigital number, since it uses as much as digits as its factorization.

16472887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95392.

The product of its digits is 150528, while the sum is 43.

The square root of 16472887 is about 4058.6804505898. The cubic root of 16472887 is about 254.4426478660.

The spelling of 16472887 in words is "sixteen million, four hundred seventy-two thousand, eight hundred eighty-seven".

Divisors: 1 173 95219 16472887