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2014020405 = 32553844453
BaseRepresentation
bin111100000001011…
…1000001100110101
312012100201211121100
41320002320030311
513111042123110
6531503240313
7100623614415
oct17002701465
95170654540
102014020405
11943953381
124825a9099
13261345b67
141516a8645
15bbc31bc0
hex780b8335

2014020405 has 24 divisors (see below), whose sum is σ = 3556840248. Its totient is φ = 1053876096.

The previous prime is 2014020403. The next prime is 2014020419. The reversal of 2014020405 is 5040204102.

2014020405 is a `hidden beast` number, since 201 + 40 + 20 + 405 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 32524209 + 1981496196 = 5703^2 + 44514^2 .

It is not a de Polignac number, because 2014020405 - 21 = 2014020403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2014020403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419842 + ... + 424611.

It is an arithmetic number, because the mean of its divisors is an integer number (148201677).

Almost surely, 22014020405 is an apocalyptic number.

It is an amenable number.

2014020405 is a deficient number, since it is larger than the sum of its proper divisors (1542819843).

2014020405 is a wasteful number, since it uses less digits than its factorization.

2014020405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844517 (or 844514 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2014020405 is about 44877.8386845891. The cubic root of 2014020405 is about 1262.8582975474.

Adding to 2014020405 its reverse (5040204102), we get a palindrome (7054224507).

The spelling of 2014020405 in words is "two billion, fourteen million, twenty thousand, four hundred five".

Divisors: 1 3 5 9 15 45 53 159 265 477 795 2385 844453 2533359 4222265 7600077 12666795 38000385 44756009 134268027 223780045 402804081 671340135 2014020405