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2018204071 = 131571994969
BaseRepresentation
bin111100001001011…
…0101100110100111
312012122121101111221
41320102311212213
513113130012241
6532133041211
7101004310612
oct17022654647
95178541457
102018204071
11946250654
12483a86207
1326217c1c0
14152077179
15bc2ab5d1
hex784b59a7

2018204071 has 16 divisors (see below), whose sum is σ = 2198728000. Its totient is φ = 1841419008.

The previous prime is 2018204053. The next prime is 2018204077. The reversal of 2018204071 is 1704028102.

It is a happy number.

It is not a de Polignac number, because 2018204071 - 29 = 2018203559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2018204077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403675 + ... + 408643.

It is an arithmetic number, because the mean of its divisors is an integer number (137420500).

Almost surely, 22018204071 is an apocalyptic number.

2018204071 is a deficient number, since it is larger than the sum of its proper divisors (180523929).

2018204071 is a wasteful number, since it uses less digits than its factorization.

2018204071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5338.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 2018204071 is about 44924.4262178161. The cubic root of 2018204071 is about 1263.7321257023.

The spelling of 2018204071 in words is "two billion, eighteen million, two hundred four thousand, seventy-one".

Divisors: 1 13 157 199 2041 2587 4969 31243 64597 406159 780133 988831 10141729 12854803 155246467 2018204071