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13222404244 = 227472228723
BaseRepresentation
bin11000101000001110…
…11110000010010100
31021010111021201201201
430110013132002110
5204034413413434
610024014002244
7645443403340
oct142407360224
937114251651
1013222404244
115675780015
1226901a6384
1313294a184a
148d6100620
15525c34614
hex3141de094

13222404244 has 12 divisors (see below), whose sum is σ = 26444808544. Its totient is φ = 5666744664.

The previous prime is 13222404233. The next prime is 13222404259. The reversal of 13222404244 is 44240422231.

13222404244 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 472228723 = 13222404244 / (1 + 3 + 2 + 2 + 2 + 4 + 0 + 4 + 2 + 4 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236114334 + ... + 236114389.

Almost surely, 213222404244 is an apocalyptic number.

13222404244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13222404244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13222404244 is a wasteful number, since it uses less digits than its factorization.

13222404244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472228734 (or 472228732 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 13222404244 its reverse (44240422231), we get a palindrome (57462826475).

The spelling of 13222404244 in words is "thirteen billion, two hundred twenty-two million, four hundred four thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 472228723 944457446 1888914892 3305601061 6611202122 13222404244