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2013013550 = 25240260271
BaseRepresentation
bin111011111111100…
…0010011000101110
312012021211200110102
41313333002120232
513110312413200
6531425511102
7100612222112
oct16777023056
95167750412
102013013550
11943325969
124821a2492
132610827a2
141514c5742
15bbad36d5
hex77fc262e

2013013550 has 12 divisors (see below), whose sum is σ = 3744205296. Its totient is φ = 805205400.

The previous prime is 2013013547. The next prime is 2013013559. The reversal of 2013013550 is 553103102.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013013559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20130086 + ... + 20130185.

It is an arithmetic number, because the mean of its divisors is an integer number (312017108).

Almost surely, 22013013550 is an apocalyptic number.

2013013550 is a deficient number, since it is larger than the sum of its proper divisors (1731191746).

2013013550 is a wasteful number, since it uses less digits than its factorization.

2013013550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40260283 (or 40260278 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 2013013550 is about 44866.6195517336. The cubic root of 2013013550 is about 1262.6478185252.

Adding to 2013013550 its reverse (553103102), we get a palindrome (2566116652).

The spelling of 2013013550 in words is "two billion, thirteen million, thirteen thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 40260271 80520542 201301355 402602710 1006506775 2013013550