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2013726528 = 26331129631
BaseRepresentation
bin111100000000111…
…0000011101000000
312012100011220111000
41320001300131000
513111003222103
6531453052000
7100621251552
oct17001603500
95170156430
102013726528
11943772600
12482487000
13261272178
1415162d4d2
15bbbc4aa3
hex78070740

2013726528 has 168 divisors, whose sum is σ = 6507764480. Its totient is φ = 610156800.

The previous prime is 2013726509. The next prime is 2013726569. The reversal of 2013726528 is 8256273102.

2013726528 is a `hidden beast` number, since 201 + 372 + 65 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2013726492 and 2013726501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204273 + ... + 213903.

Almost surely, 22013726528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2013726528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3253882240).

2013726528 is an abundant number, since it is smaller than the sum of its proper divisors (4494037952).

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

2013726528 is a wasteful number, since it uses less digits than its factorization.

2013726528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9674 (or 9647 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2013726528 is about 44874.5643767157. The cubic root of 2013726528 is about 1262.7968709834.

It can be divided in two parts, 20137 and 26528, that added together give a triangular number (46665 = T305).

The spelling of 2013726528 in words is "two billion, thirteen million, seven hundred twenty-six thousand, five hundred twenty-eight".