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2135052445 = 5427010489
BaseRepresentation
bin111111101000010…
…0101000010011101
312111210110220100111
41333100211002131
513333033134240
6551505330021
7103623434461
oct17720450235
95453426314
102135052445
119a61aa559
124b7036911
13280441756
141637b24a1
15c768d1ea
hex7f42509d

2135052445 has 4 divisors (see below), whose sum is σ = 2562062940. Its totient is φ = 1708041952.

The previous prime is 2135052443. The next prime is 2135052449. The reversal of 2135052445 is 5442505312.

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

It can be written as a sum of positive squares in 2 ways, for example, as 222039801 + 1913012644 = 14901^2 + 43738^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135052445 - 21 = 2135052443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135052443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213505240 + ... + 213505249.

It is an arithmetic number, because the mean of its divisors is an integer number (640515735).

Almost surely, 22135052445 is an apocalyptic number.

It is an amenable number.

2135052445 is a deficient number, since it is larger than the sum of its proper divisors (427010495).

2135052445 is an equidigital number, since it uses as much as digits as its factorization.

2135052445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427010494.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2135052445 is about 46206.6277172442. The cubic root of 2135052445 is about 1287.6648749800.

Adding to 2135052445 its reverse (5442505312), we get a palindrome (7577557757).

The spelling of 2135052445 in words is "two billion, one hundred thirty-five million, fifty-two thousand, four hundred forty-five".

Divisors: 1 5 427010489 2135052445