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2055888281 = 2389386447
BaseRepresentation
bin111101010001010…
…0101110110011001
312022021111221112102
41322202211312121
513202301411111
6540000453145
7101642522246
oct17242456631
95267457472
102055888281
1196554a327
1249461a1b5
13269c14955
141570865cd
15c075213b
hex7a8a5d99

2055888281 has 4 divisors (see below), whose sum is σ = 2145274752. Its totient is φ = 1966501812.

The previous prime is 2055888253. The next prime is 2055888299. The reversal of 2055888281 is 1828885502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2055888281 is a prime.

It is a super-2 number, since 2×20558882812 = 8453353247906269922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2055888481) 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, 44693201 + ... + 44693246.

It is an arithmetic number, because the mean of its divisors is an integer number (536318688).

Almost surely, 22055888281 is an apocalyptic number.

It is an amenable number.

2055888281 is a deficient number, since it is larger than the sum of its proper divisors (89386471).

2055888281 is an equidigital number, since it uses as much as digits as its factorization.

2055888281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89386470.

The product of its (nonzero) digits is 409600, while the sum is 47.

The square root of 2055888281 is about 45341.9042498217. The cubic root of 2055888281 is about 1271.5492039508.

The spelling of 2055888281 in words is "two billion, fifty-five million, eight hundred eighty-eight thousand, two hundred eighty-one".

Divisors: 1 23 89386447 2055888281