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16287080 = 235407177
BaseRepresentation
bin111110001000…
…010101101000
31010122110200012
4332020111220
513132141310
61341031052
7255303125
oct76102550
933573605
1016287080
1192147a7
125555488
1334b3434
14223d74c
15166ac05
hexf88568

16287080 has 16 divisors (see below), whose sum is σ = 36646020. Its totient is φ = 6514816.

The previous prime is 16287053. The next prime is 16287083. The reversal of 16287080 is 8078261.

It can be written as a sum of positive squares in 2 ways, for example, as 16273156 + 13924 = 4034^2 + 118^2 .

It is not an unprimeable number, because it can be changed into a prime (16287083) 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, 203549 + ... + 203628.

Almost surely, 216287080 is an apocalyptic number.

16287080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16287080 is an abundant number, since it is smaller than the sum of its proper divisors (20358940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16287080 is a wasteful number, since it uses less digits than its factorization.

16287080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407188 (or 407184 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 16287080 is about 4035.7254614257. The cubic root of 16287080 is about 253.4823607607.

The spelling of 16287080 in words is "sixteen million, two hundred eighty-seven thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 407177 814354 1628708 2035885 3257416 4071770 8143540 16287080