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13231022222 = 2111279470219
BaseRepresentation
bin11000101001010000…
…10110000010001110
31021011002111120101002
430110220112002032
5204044120202342
610024522420302
7645606555545
oct142450260216
937132446332
1013231022222
11567a626910
122693061692
13132b1cb342
148d730515c
15526887d32
hex314a1608e

13231022222 has 16 divisors (see below), whose sum is σ = 21667737600. Its totient is φ = 6009386040.

The previous prime is 13231022221. The next prime is 13231022249. The reversal of 13231022222 is 22222013231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13231022194 and 13231022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231022221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206972 + ... + 263247.

It is an arithmetic number, because the mean of its divisors is an integer number (1354233600).

Almost surely, 213231022222 is an apocalyptic number.

13231022222 is a deficient number, since it is larger than the sum of its proper divisors (8436715378).

13231022222 is a wasteful number, since it uses less digits than its factorization.

13231022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471511.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13231022222 its reverse (22222013231), we get a palindrome (35453035453).

The spelling of 13231022222 in words is "thirteen billion, two hundred thirty-one million, twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 11 22 1279 2558 14069 28138 470219 940438 5172409 10344818 601410101 1202820202 6615511111 13231022222