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16842811 = 149113039
BaseRepresentation
bin100000001000…
…0000000111011
31011200200222211
41000100000323
513302432221
61400555551
7263106256
oct100200073
934620884
1016842811
119564287
125782bb7
13364937b
14234609d
15172a6e1
hex101003b

16842811 has 4 divisors (see below), whose sum is σ = 16956000. Its totient is φ = 16729624.

The previous prime is 16842809. The next prime is 16842821. The reversal of 16842811 is 11824861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11824861 = 25147111.

It is a cyclic number.

It is not a de Polignac number, because 16842811 - 21 = 16842809 is a prime.

It is a super-3 number, since 3×168428113 (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) 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 not an unprimeable number, because it can be changed into a prime (16842821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56371 + ... + 56668.

It is an arithmetic number, because the mean of its divisors is an integer number (4239000).

Almost surely, 216842811 is an apocalyptic number.

16842811 is a deficient number, since it is larger than the sum of its proper divisors (113189).

16842811 is a wasteful number, since it uses less digits than its factorization.

16842811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113188.

The product of its digits is 3072, while the sum is 31.

The square root of 16842811 is about 4103.9993908382. Note that the first 3 decimals coincide. The cubic root of 16842811 is about 256.3331995552. Note that the first 3 decimals are identical.

The spelling of 16842811 in words is "sixteen million, eight hundred forty-two thousand, eight hundred eleven".

Divisors: 1 149 113039 16842811