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2004454205 = 51361505537
BaseRepresentation
bin111011101111001…
…1000101100111101
312011200201211020122
41313132120230331
513101120013310
6530522224325
7100446402545
oct16736305475
95150654218
102004454205
1193950a126
1247b3550a5
1325c3768a0
141502d8325
15bae92555
hex77798b3d

2004454205 has 16 divisors (see below), whose sum is σ = 2632841904. Its totient is φ = 1455943680.

The previous prime is 2004454201. The next prime is 2004454211. The reversal of 2004454205 is 5024544002.

It can be written as a sum of positive squares in 8 ways, for example, as 65108761 + 1939345444 = 8069^2 + 44038^2 .

It is not a de Polignac number, because 2004454205 - 22 = 2004454201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004454201) 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, 248804 + ... + 256733.

It is an arithmetic number, because the mean of its divisors is an integer number (164552619).

Almost surely, 22004454205 is an apocalyptic number.

It is an amenable number.

2004454205 is a deficient number, since it is larger than the sum of its proper divisors (628387699).

2004454205 is a wasteful number, since it uses less digits than its factorization.

2004454205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505616.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 2004454205 is about 44771.1313794950. The cubic root of 2004454205 is about 1260.8556808383.

Adding to 2004454205 its reverse (5024544002), we get a palindrome (7028998207).

The spelling of 2004454205 in words is "two billion, four million, four hundred fifty-four thousand, two hundred five".

Divisors: 1 5 13 61 65 305 793 3965 505537 2527685 6571981 30837757 32859905 154188785 400890841 2004454205