Search a number
1028998 = 2514499
BaseRepresentation
bin11111011001110000110
31221021112001
43323032012
5230411443
634015514
711513665
oct3731606
91837461
101028998
11643113
1241759a
132a0499
15154d4d
hexfb386

1028998 has 4 divisors (see below), whose sum is σ = 1543500. Its totient is φ = 514498.

The previous prime is 1028981. The next prime is 1028999. The reversal of 1028998 is 8998201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8998201 = 19147111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257248 + ... + 257251.

It is an arithmetic number, because the mean of its divisors is an integer number (385875).

21028998 is an apocalyptic number.

1028998 is a deficient number, since it is larger than the sum of its proper divisors (514502).

1028998 is an equidigital number, since it uses as much as digits as its factorization.

1028998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514501.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 1028998 is about 1014.3953864248. The cubic root of 1028998 is about 100.9574045133.

The spelling of 1028998 in words is "one million, twenty-eight thousand, nine hundred ninety-eight".

Divisors: 1 2 514499 1028998