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28166182 = 2111280281
BaseRepresentation
bin110101101110…
…0100000100110
31221222222201221
41223130200212
524202304212
62443410554
7461260102
oct153344046
957888657
1028166182
1114998740
129523a5a
135ab23a5
143a52902
152715807
hex1adc826

28166182 has 8 divisors (see below), whose sum is σ = 46090152. Its totient is φ = 12802800.

The previous prime is 28166167. The next prime is 28166209.

28166182 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640119 + ... + 640162.

It is an arithmetic number, because the mean of its divisors is an integer number (5761269).

Almost surely, 228166182 is an apocalyptic number.

28166182 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28166182 is a deficient number, since it is larger than the sum of its proper divisors (17923970).

28166182 is a wasteful number, since it uses less digits than its factorization.

28166182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280294.

The product of its digits is 9216, while the sum is 34.

The square root of 28166182 is about 5307.1821148327. The cubic root of 28166182 is about 304.2584583495.

It can be divided in two parts, 2816 and 6182, that added together give a palindrome (8998).

The spelling of 28166182 in words is "twenty-eight million, one hundred sixty-six thousand, one hundred eighty-two".

Divisors: 1 2 11 22 1280281 2560562 14083091 28166182