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2204400311 = 19116021069
BaseRepresentation
bin1000001101100100…
…0111101010110111
312200121222010201222
42003121013222313
514003311302221
61002423540555
7105425044031
oct20331075267
95617863658
102204400311
11a31365643
125162ba75b
132919124a9
1416caa4c51
15cd7da9ab
hex83647ab7

2204400311 has 4 divisors (see below), whose sum is σ = 2320421400. Its totient is φ = 2088379224.

The previous prime is 2204400277. The next prime is 2204400313. The reversal of 2204400311 is 1130044022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1130044022 = 2565022011.

It is not a de Polignac number, because 2204400311 - 226 = 2137291447 is a prime.

It is a super-2 number, since 2×22044003112 = 9718761462273793442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2204400311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204400313) 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, 58010516 + ... + 58010553.

It is an arithmetic number, because the mean of its divisors is an integer number (580105350).

Almost surely, 22204400311 is an apocalyptic number.

2204400311 is a deficient number, since it is larger than the sum of its proper divisors (116021089).

2204400311 is a wasteful number, since it uses less digits than its factorization.

2204400311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116021088.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2204400311 is about 46951.0416391373. The cubic root of 2204400311 is about 1301.4579916206.

Adding to 2204400311 its reverse (1130044022), we get a palindrome (3334444333).

The spelling of 2204400311 in words is "two billion, two hundred four million, four hundred thousand, three hundred eleven".

Divisors: 1 19 116021069 2204400311