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2140554055 = 5428110811
BaseRepresentation
bin111111110010110…
…0100001101000111
312112011211102010211
41333211210031013
513340440212210
6552223300251
7104021260243
oct17745441507
95464742124
102140554055
119a9317a42
124b8a4a687
13281619943
14164405423
15c7dc838a
hex7f964347

2140554055 has 4 divisors (see below), whose sum is σ = 2568664872. Its totient is φ = 1712443240.

The previous prime is 2140554049. The next prime is 2140554071. The reversal of 2140554055 is 5504550412.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2140554055 - 215 = 2140521287 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214055401 + ... + 214055410.

It is an arithmetic number, because the mean of its divisors is an integer number (642166218).

Almost surely, 22140554055 is an apocalyptic number.

2140554055 is a deficient number, since it is larger than the sum of its proper divisors (428110817).

2140554055 is an equidigital number, since it uses as much as digits as its factorization.

2140554055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428110816.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 2140554055 is about 46266.1221089471. The cubic root of 2140554055 is about 1288.7699460016.

The spelling of 2140554055 in words is "two billion, one hundred forty million, five hundred fifty-four thousand, fifty-five".

Divisors: 1 5 428110811 2140554055