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7828804 = 2213992
BaseRepresentation
bin11101110111010101000100
3112201202002201
4131313111010
54001010204
6435444244
7123354334
oct35672504
915652081
107828804
114467995
122756684
131811539
14107b0c4
15a499a4
hex777544

7828804 has 9 divisors (see below), whose sum is σ = 13710207. Its totient is φ = 3911604.

The previous prime is 7828783. The next prime is 7828841. The reversal of 7828804 is 4088287.

The square root of 7828804 is 2798.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×78288042 = 122580344140832, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

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 2 ways as a sum of consecutive naturals, for example, 4897 + ... + 6295.

Almost surely, 27828804 is an apocalyptic number.

7828804 is the 2798-th square number.

It is an amenable number.

7828804 is a deficient number, since it is larger than the sum of its proper divisors (5881403).

7828804 is an equidigital number, since it uses as much as digits as its factorization.

7828804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802 (or 1401 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The cubic root of 7828804 is about 198.5630675164.

It can be divided in two parts, 78 and 28804, that added together give a palindrome (28882).

The spelling of 7828804 in words is "seven million, eight hundred twenty-eight thousand, eight hundred four".

Divisors: 1 2 4 1399 2798 5596 1957201 3914402 7828804