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1020804304 = 241317288689
BaseRepresentation
bin111100110110000…
…011110011010000
32122010211020020211
4330312003303100
54042311214204
6245143213504
734203456562
oct7466036320
92563736224
101020804304
11484243423
12245a47294
13133642720
1499805332
155e940804
hex3cd83cd0

1020804304 has 40 divisors (see below), whose sum is σ = 2255246280. Its totient is φ = 443424768.

The previous prime is 1020804299. The next prime is 1020804311. The reversal of 1020804304 is 4034080201.

1020804304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 159264400 + 861539904 = 12620^2 + 29352^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140809 + ... + 147880.

It is an arithmetic number, because the mean of its divisors is an integer number (56381157).

Almost surely, 21020804304 is an apocalyptic number.

It is an amenable number.

1020804304 is an abundant number, since it is smaller than the sum of its proper divisors (1234441976).

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

1020804304 is a wasteful number, since it uses less digits than its factorization.

1020804304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288727 (or 288721 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1020804304 is about 31950.0282315994. The cubic root of 1020804304 is about 1006.8872252327.

Adding to 1020804304 its reverse (4034080201), we get a palindrome (5054884505).

The spelling of 1020804304 in words is "one billion, twenty million, eight hundred four thousand, three hundred four".

Divisors: 1 2 4 8 13 16 17 26 34 52 68 104 136 208 221 272 442 884 1768 3536 288689 577378 1154756 2309512 3752957 4619024 4907713 7505914 9815426 15011828 19630852 30023656 39261704 60047312 63800269 78523408 127600538 255201076 510402152 1020804304