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16287107 = 109149423
BaseRepresentation
bin111110001000…
…010110000011
31010122110201012
4332020112003
513132141412
61341031135
7255303164
oct76102603
933573635
1016287107
119214821
1255554ab
1334b3455
14223d76b
15166ac22
hexf88583

16287107 has 4 divisors (see below), whose sum is σ = 16436640. Its totient is φ = 16137576.

The previous prime is 16287101. The next prime is 16287109. The reversal of 16287107 is 70178261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70178261 = 174128133.

It is a cyclic number.

It is not a de Polignac number, because 16287107 - 24 = 16287091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16287101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74603 + ... + 74820.

It is an arithmetic number, because the mean of its divisors is an integer number (4109160).

Almost surely, 216287107 is an apocalyptic number.

16287107 is a deficient number, since it is larger than the sum of its proper divisors (149533).

16287107 is a wasteful number, since it uses less digits than its factorization.

16287107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149532.

The product of its (nonzero) digits is 4704, while the sum is 32.

The square root of 16287107 is about 4035.7288065478. The cubic root of 16287107 is about 253.4825008312.

The spelling of 16287107 in words is "sixteen million, two hundred eighty-seven thousand, one hundred seven".

Divisors: 1 109 149423 16287107