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2255201111 = 3583629417
BaseRepresentation
bin1000011001101011…
…1010001101010111
312211011120002100002
42012122322031113
514104312413421
61011440441515
7106612615232
oct20632721527
95734502302
102255201111
11a58002a79
1252b31929b
1329c2bb237
1417572a419
15d2ec2b0b
hex866ba357

2255201111 has 4 divisors (see below), whose sum is σ = 2255834112. Its totient is φ = 2254568112.

The previous prime is 2255201101. The next prime is 2255201159. The reversal of 2255201111 is 1111025522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1111025522 = 2555512761.

It is a cyclic number.

It is not a de Polignac number, because 2255201111 - 230 = 1181459287 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 (2255201101) 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, 311126 + ... + 318291.

It is an arithmetic number, because the mean of its divisors is an integer number (563958528).

Almost surely, 22255201111 is an apocalyptic number.

2255201111 is a deficient number, since it is larger than the sum of its proper divisors (633001).

2255201111 is an equidigital number, since it uses as much as digits as its factorization.

2255201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633000.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 2255201111 is about 47488.9577796776. The cubic root of 2255201111 is about 1311.3796065399.

Adding to 2255201111 its reverse (1111025522), we get a palindrome (3366226633).

The spelling of 2255201111 in words is "two billion, two hundred fifty-five million, two hundred one thousand, one hundred eleven".

Divisors: 1 3583 629417 2255201111