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2663231057 = 9733273629
BaseRepresentation
bin1001111010111101…
…1010111001010001
320212121100011012022
42132233122321101
520423241343212
61120134141225
7122666043014
oct23657327121
96777304168
102663231057
111147362a03
12623ab1815
133359b1786
141b39c137b
15108c20772
hex9ebdae51

2663231057 has 4 divisors (see below), whose sum is σ = 2663514420. Its totient is φ = 2662947696.

The previous prime is 2663231009. The next prime is 2663231059. The reversal of 2663231057 is 7501323662.

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 2555403601 + 107827456 = 50551^2 + 10384^2 .

It is a cyclic number.

It is not a de Polignac number, because 2663231057 - 216 = 2663165521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2663231059) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 127082 + ... + 146547.

It is an arithmetic number, because the mean of its divisors is an integer number (665878605).

Almost surely, 22663231057 is an apocalyptic number.

It is an amenable number.

2663231057 is a deficient number, since it is larger than the sum of its proper divisors (283363).

2663231057 is an equidigital number, since it uses as much as digits as its factorization.

2663231057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283362.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 2663231057 is about 51606.5020806487. The cubic root of 2663231057 is about 1386.1267630930.

It can be divided in two parts, 266 and 3231057, that added together give a palindrome (3231323).

The spelling of 2663231057 in words is "two billion, six hundred sixty-three million, two hundred thirty-one thousand, fifty-seven".

Divisors: 1 9733 273629 2663231057