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13222431330 = 235993144381
BaseRepresentation
bin11000101000001111…
…00100101001100010
31021010111100002212220
430110013210221202
5204034420300310
610024014331510
7645443545323
oct142407445142
937114302786
1013222431330
1156757993a9
1226901b9b96
1313294b0c84
148d610a44a
15525c3c670
hex3141e4a62

13222431330 has 32 divisors (see below), whose sum is σ = 31737745728. Its totient is φ = 3525547200.

The previous prime is 13222431323. The next prime is 13222431331. The reversal of 13222431330 is 3313422231.

It is a self number, because there is not a number n which added to its sum of digits gives 13222431330.

It is not an unprimeable number, because it can be changed into a prime (13222431331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275740 + ... + 320120.

It is an arithmetic number, because the mean of its divisors is an integer number (991804554).

Almost surely, 213222431330 is an apocalyptic number.

13222431330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13222431330 is an abundant number, since it is smaller than the sum of its proper divisors (18515314398).

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

13222431330 is a wasteful number, since it uses less digits than its factorization.

13222431330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54322.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13222431330 its reverse (3313422231), we get a palindrome (16535853561).

Subtracting from 13222431330 its reverse (3313422231), we obtain a palindrome (9909009099).

The spelling of 13222431330 in words is "thirteen billion, two hundred twenty-two million, four hundred thirty-one thousand, three hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 9931 19862 29793 44381 49655 59586 88762 99310 133143 148965 221905 266286 297930 443810 665715 1331430 440747711 881495422 1322243133 2203738555 2644486266 4407477110 6611215665 13222431330