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28418314 = 261232937
BaseRepresentation
bin110110001101…
…0000100001010
31222110210121011
41230122010022
524233341224
62453034134
7463360141
oct154320412
958423534
1028418314
1115050111
12962594a
135b70092
143aba758
152765394
hex1b1a10a

28418314 has 8 divisors (see below), whose sum is σ = 43326468. Its totient is φ = 13976160.

The previous prime is 28418303. The next prime is 28418329. The reversal of 28418314 is 41381482.

It can be written as a sum of positive squares in 2 ways, for example, as 23687689 + 4730625 = 4867^2 + 2175^2 .

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

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, 116347 + ... + 116590.

Almost surely, 228418314 is an apocalyptic number.

28418314 is a deficient number, since it is larger than the sum of its proper divisors (14908154).

28418314 is a wasteful number, since it uses less digits than its factorization.

28418314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233000.

The product of its digits is 6144, while the sum is 31.

The square root of 28418314 is about 5330.8830412981. The cubic root of 28418314 is about 305.1636280472.

Adding to 28418314 its reverse (41381482), we get a palindrome (69799796).

The spelling of 28418314 in words is "twenty-eight million, four hundred eighteen thousand, three hundred fourteen".

Divisors: 1 2 61 122 232937 465874 14209157 28418314