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13230421222 = 26615210611
BaseRepresentation
bin11000101001001100…
…00011010011100110
31021011001101000221211
430110212003103212
5204043441434342
610024501502034
7645601503424
oct142446032346
937131330854
1013230421222
11567a256317
122692a1191a
13132b04a915
148d71ca114
155267b9c17
hex3149834e6

13230421222 has 4 divisors (see below), whose sum is σ = 19845631836. Its totient is φ = 6615210610.

The previous prime is 13230421201. The next prime is 13230421247. The reversal of 13230421222 is 22212403231.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 13230421193 and 13230421202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3307605304 + ... + 3307605307.

It is an arithmetic number, because the mean of its divisors is an integer number (4961407959).

Almost surely, 213230421222 is an apocalyptic number.

13230421222 is a deficient number, since it is larger than the sum of its proper divisors (6615210614).

13230421222 is an equidigital number, since it uses as much as digits as its factorization.

13230421222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6615210613.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13230421222 its reverse (22212403231), we get a palindrome (35442824453).

The spelling of 13230421222 in words is "thirteen billion, two hundred thirty million, four hundred twenty-one thousand, two hundred twenty-two".

Divisors: 1 2 6615210611 13230421222