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2013806764260 = 2232511187815357
BaseRepresentation
bin11101010011100000001…
…111001010000011100100
321010111222122201010221100
4131103200033022003210
5230443234012424020
64141044031520100
7265331003031054
oct35234017120344
97114878633840
102013806764260
11707061467165
12286357989030
13117b93b16a75
146d67c425564
15375b5190a90
hex1d4e03ca0e4

2013806764260 has 36 divisors (see below), whose sum is σ = 6108547185468. Its totient is φ = 537015137088.

The previous prime is 2013806764247. The next prime is 2013806764267. The reversal of 2013806764260 is 624676083102.

2013806764260 is a `hidden beast` number, since 2 + 0 + 1 + 380 + 6 + 7 + 6 + 4 + 260 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1104617816064 + 909188948196 = 1051008^2 + 953514^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2013806764267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5593907499 + ... + 5593907858.

It is an arithmetic number, because the mean of its divisors is an integer number (169681866263).

Almost surely, 22013806764260 is an apocalyptic number.

2013806764260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013806764260 is an abundant number, since it is smaller than the sum of its proper divisors (4094740421208).

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

2013806764260 is a wasteful number, since it uses less digits than its factorization.

2013806764260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11187815372 (or 11187815367 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 2013806764260 in words is "two trillion, thirteen billion, eight hundred six million, seven hundred sixty-four thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 11187815357 22375630714 33563446071 44751261428 55939076785 67126892142 100690338213 111878153570 134253784284 167817230355 201380676426 223756307140 335634460710 402761352852 503451691065 671268921420 1006903382130 2013806764260