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16144286 = 28072143
BaseRepresentation
bin111101100101…
…011110011110
31010101012210112
4331211132132
513113104121
61334010022
7254136614
oct75453636
933335715
1016144286
119127494
1254a6912
133463442
1422036b4
15163d75b
hexf6579e

16144286 has 4 divisors (see below), whose sum is σ = 24216432. Its totient is φ = 8072142.

The previous prime is 16144279. The next prime is 16144291. The reversal of 16144286 is 68244161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68244161 = 613111131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4036070 + ... + 4036073.

It is an arithmetic number, because the mean of its divisors is an integer number (6054108).

Almost surely, 216144286 is an apocalyptic number.

16144286 is a deficient number, since it is larger than the sum of its proper divisors (8072146).

16144286 is an equidigital number, since it uses as much as digits as its factorization.

16144286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8072145.

The product of its digits is 9216, while the sum is 32.

The square root of 16144286 is about 4017.9952712765. The cubic root of 16144286 is about 252.7393984784.

The spelling of 16144286 in words is "sixteen million, one hundred forty-four thousand, two hundred eighty-six".

Divisors: 1 2 8072143 16144286