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2140551215 = 51179492647
BaseRepresentation
bin111111110010110…
…0011100000101111
312112011211021020122
41333211203200233
513340440114330
6552223235155
7104021246045
oct17745434057
95464737218
102140551215
119a93158a0
124b8a48abb
1328161856a
14164404395
15c7dc75e5
hex7f96382f

2140551215 has 16 divisors (see below), whose sum is σ = 2837652480. Its totient is φ = 1537055520.

The previous prime is 2140551199. The next prime is 2140551293. The reversal of 2140551215 is 5121550412.

It is not a de Polignac number, because 2140551215 - 24 = 2140551199 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 241979 + ... + 250668.

It is an arithmetic number, because the mean of its divisors is an integer number (177353280).

Almost surely, 22140551215 is an apocalyptic number.

2140551215 is a deficient number, since it is larger than the sum of its proper divisors (697101265).

2140551215 is a wasteful number, since it uses less digits than its factorization.

2140551215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492742.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 2140551215 is about 46266.0914169330. The cubic root of 2140551215 is about 1288.7693760389.

It can be divided in two parts, 2140 and 551215, that added together give a palindrome (553355).

The spelling of 2140551215 in words is "two billion, one hundred forty million, five hundred fifty-one thousand, two hundred fifteen".

Divisors: 1 5 11 55 79 395 869 4345 492647 2463235 5419117 27095585 38919113 194595565 428110243 2140551215