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1028814 = 23171469
BaseRepresentation
bin11111011001011001110
31221021021020
43323023032
5230410224
634015010
711513313
oct3731316
91837236
101028814
11642a66
12417466
132a0387
141cad0a
15154c79
hexfb2ce

1028814 has 8 divisors (see below), whose sum is σ = 2057640. Its totient is φ = 342936.

The previous prime is 1028809. The next prime is 1028837. The reversal of 1028814 is 4188201.

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

1028814 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85729 + ... + 85740.

It is an arithmetic number, because the mean of its divisors is an integer number (257205).

21028814 is an apocalyptic number.

1028814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1028814 is a wasteful number, since it uses less digits than its factorization.

1028814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171474.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1028814 is about 1014.3046879513. The cubic root of 1028814 is about 100.9513865976.

The spelling of 1028814 in words is "one million, twenty-eight thousand, eight hundred fourteen".

Divisors: 1 2 3 6 171469 342938 514407 1028814