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2272890223 = 19139118757
BaseRepresentation
bin1000011101111001…
…1000110101101111
312212101211210020101
42013132120311233
514123324441343
61013311531531
7110216151052
oct20736306557
95771753211
102272890223
11a66a9507a
12535229ba7
132a2b72876
14177c12a99
15d4818e4d
hex87798d6f

2272890223 has 4 divisors (see below), whose sum is σ = 2273028120. Its totient is φ = 2272752328.

The previous prime is 2272890211. The next prime is 2272890233. The reversal of 2272890223 is 3220982722.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3220982722 = 21610491361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2272890223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272890233) 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, 40240 + ... + 78517.

It is an arithmetic number, because the mean of its divisors is an integer number (568257030).

Almost surely, 22272890223 is an apocalyptic number.

2272890223 is a deficient number, since it is larger than the sum of its proper divisors (137897).

2272890223 is a wasteful number, since it uses less digits than its factorization.

2272890223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137896.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 2272890223 is about 47674.8384685255. The cubic root of 2272890223 is about 1314.7993685437.

The spelling of 2272890223 in words is "two billion, two hundred seventy-two million, eight hundred ninety thousand, two hundred twenty-three".

Divisors: 1 19139 118757 2272890223