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2655112661 = 2991555609
BaseRepresentation
bin1001111001000001…
…1100110111010101
320212001001200211222
42132100130313111
520414202101121
61115244140125
7122540041145
oct23620346725
96761050758
102655112661
111142818493
12621237645
133340cb4a6
141b28aa925
1510816a0ab
hex9e41cdd5

2655112661 has 4 divisors (see below), whose sum is σ = 2746668300. Its totient is φ = 2563557024.

The previous prime is 2655112639. The next prime is 2655112693. The reversal of 2655112661 is 1662115562.

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 949009636 + 1706103025 = 30806^2 + 41305^2 .

It is a cyclic number.

It is not a de Polignac number, because 2655112661 - 26 = 2655112597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655112261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45777776 + ... + 45777833.

It is an arithmetic number, because the mean of its divisors is an integer number (686667075).

Almost surely, 22655112661 is an apocalyptic number.

It is an amenable number.

2655112661 is a deficient number, since it is larger than the sum of its proper divisors (91555639).

2655112661 is an equidigital number, since it uses as much as digits as its factorization.

2655112661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91555638.

The product of its digits is 21600, while the sum is 35.

The square root of 2655112661 is about 51527.7853298587. The cubic root of 2655112661 is about 1384.7168741861.

The spelling of 2655112661 in words is "two billion, six hundred fifty-five million, one hundred twelve thousand, six hundred sixty-one".

Divisors: 1 29 91555609 2655112661