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2004020245 = 523137311409
BaseRepresentation
bin111011101110010…
…1110110000010101
312011122220202222001
41313130232300111
513101012121440
6530505035301
7100442614423
oct16734566025
95148822861
102004020245
11939243087
1247b185b31
1325c2541c6
14150224113
15bae08b9a
hex7772ec15

2004020245 has 32 divisors (see below), whose sum is σ = 2542026240. Its totient is φ = 1513712640.

The previous prime is 2004020201. The next prime is 2004020257. The reversal of 2004020245 is 5420204002.

2004020245 = T430 + T431 + ... + T2295.

It is not a de Polignac number, because 2004020245 - 211 = 2004018197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4899601 + ... + 4900009.

It is an arithmetic number, because the mean of its divisors is an integer number (79438320).

Almost surely, 22004020245 is an apocalyptic number.

It is an amenable number.

2004020245 is a deficient number, since it is larger than the sum of its proper divisors (538005995).

2004020245 is a wasteful number, since it uses less digits than its factorization.

2004020245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 2004020245 is about 44766.2846906017. The cubic root of 2004020245 is about 1260.7646834284.

Adding to 2004020245 its reverse (5420204002), we get a palindrome (7424224247).

The spelling of 2004020245 in words is "two billion, four million, twenty thousand, two hundred forty-five".

Divisors: 1 5 23 115 137 311 409 685 1555 2045 3151 7153 9407 15755 35765 42607 47035 56033 127199 213035 280165 635995 979961 1288759 2925577 4899805 6443795 14627885 17426263 87131315 400804049 2004020245