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13122312210 = 232573425083
BaseRepresentation
bin11000011100010011…
…01001100000010010
31020212111221112021100
430032021221200102
5203333302442320
610010040405230
7643116546000
oct141611514022
936774845240
1013122312210
115624226427
122662776816
1313118281a7
148c6ac7a70
1551c062790
hex30e269812

13122312210 has 96 divisors (see below), whose sum is σ = 39787862400. Its totient is φ = 2999378592.

The previous prime is 13122312191. The next prime is 13122312221. The reversal of 13122312210 is 1221322131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 181672 + ... + 243411.

It is an arithmetic number, because the mean of its divisors is an integer number (414456900).

Almost surely, 213122312210 is an apocalyptic number.

13122312210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13122312210 is an abundant number, since it is smaller than the sum of its proper divisors (26665550190).

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

13122312210 is a wasteful number, since it uses less digits than its factorization.

13122312210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425117 (or 425100 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13122312210 its reverse (1221322131), we get a palindrome (14343634341).

The spelling of 13122312210 in words is "thirteen billion, one hundred twenty-two million, three hundred twelve thousand, two hundred ten".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 49 63 70 90 98 105 126 147 210 245 294 315 343 441 490 630 686 735 882 1029 1470 1715 2058 2205 3087 3430 4410 5145 6174 10290 15435 30870 425083 850166 1275249 2125415 2550498 2975581 3825747 4250830 5951162 6376245 7651494 8926743 12752490 14877905 17853486 19128735 20829067 26780229 29755810 38257470 41658134 44633715 53560458 62487201 89267430 104145335 124974402 133901145 145803469 187461603 208290670 267802290 291606938 312436005 374923206 437410407 624872010 729017345 874820814 937308015 1312231221 1458034690 1874616030 2187052035 2624462442 4374104070 6561156105 13122312210