Search a number
-
+
1028349 = 3375441
BaseRepresentation
bin11111011000011111101
31221020122000
43323003331
5230401344
634012513
711512050
oct3730375
91836560
101028349
11642683
12417139
132a00ba
141caa97
15154a69
hexfb0fd

1028349 has 16 divisors (see below), whose sum is σ = 1741440. Its totient is φ = 587520.

The previous prime is 1028333. The next prime is 1028389. The reversal of 1028349 is 9438201.

It is not a de Polignac number, because 1028349 - 24 = 1028333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2532 + ... + 2909.

It is an arithmetic number, because the mean of its divisors is an integer number (108840).

21028349 is an apocalyptic number.

It is an amenable number.

1028349 is a deficient number, since it is larger than the sum of its proper divisors (713091).

1028349 is an equidigital number, since it uses as much as digits as its factorization.

1028349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5457 (or 5451 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1028349 is about 1014.0754409806. The cubic root of 1028349 is about 100.9361750793.

The spelling of 1028349 in words is "one million, twenty-eight thousand, three hundred forty-nine".

Divisors: 1 3 7 9 21 27 63 189 5441 16323 38087 48969 114261 146907 342783 1028349