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28027315 = 537151499
BaseRepresentation
bin110101011101…
…0100110110011
31221201221020201
41222322212303
524133333230
62440420031
7460141201
oct152724663
957657221
1028027315
1114903378
129477617
135a64114
143a18071
1526d95ca
hex1aba9b3

28027315 has 8 divisors (see below), whose sum is σ = 34542000. Its totient is φ = 21815712.

The previous prime is 28027297. The next prime is 28027327. The reversal of 28027315 is 51372082.

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

It is a cyclic number.

It is not a de Polignac number, because 28027315 - 27 = 28027187 is a prime.

It is a super-2 number, since 2×280273152 = 1571060772218450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75565 + ... + 75934.

It is an arithmetic number, because the mean of its divisors is an integer number (4317750).

Almost surely, 228027315 is an apocalyptic number.

28027315 is a deficient number, since it is larger than the sum of its proper divisors (6514685).

28027315 is a wasteful number, since it uses less digits than its factorization.

28027315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151541.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 28027315 is about 5294.0830178606. The cubic root of 28027315 is about 303.7576084621.

Adding to 28027315 its reverse (51372082), we get a palindrome (79399397).

The spelling of 28027315 in words is "twenty-eight million, twenty-seven thousand, three hundred fifteen".

Divisors: 1 5 37 185 151499 757495 5605463 28027315