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2663041664 = 27127163819
BaseRepresentation
bin1001111010111010…
…1100101010000000
320212120222112101202
42132232230222000
520423214313124
61120130120332
7122664323603
oct23656545200
96776875352
102663041664
111147243688
12623a200a8
133359464ca
141b397233a
15108bd45ae
hex9ebaca80

2663041664 has 32 divisors (see below), whose sum is σ = 5347084800. Its totient is φ = 1321028352.

The previous prime is 2663041651. The next prime is 2663041709. The reversal of 2663041664 is 4661403662.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65654 + ... + 98165.

It is an arithmetic number, because the mean of its divisors is an integer number (167096400).

Almost surely, 22663041664 is an apocalyptic number.

It is an amenable number.

2663041664 is an abundant number, since it is smaller than the sum of its proper divisors (2684043136).

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

2663041664 is a wasteful number, since it uses less digits than its factorization.

2663041664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163960 (or 163948 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 2663041664 is about 51604.6670757597. The cubic root of 2663041664 is about 1386.0939046435.

The spelling of 2663041664 in words is "two billion, six hundred sixty-three million, forty-one thousand, six hundred sixty-four".

Divisors: 1 2 4 8 16 32 64 127 128 254 508 1016 2032 4064 8128 16256 163819 327638 655276 1310552 2621104 5242208 10484416 20805013 20968832 41610026 83220052 166440104 332880208 665760416 1331520832 2663041664