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1313421113212 = 2213731619213713
BaseRepresentation
bin10011000111001101111…
…111111011011101111100
311122120011120112122102021
4103013031333323131330
5133004341301110322
62443213300405524
7163614541154335
oct23071577733574
94576146478367
101313421113212
11467022a8319a
121926720a68a4
1396b167c0750
14477d9c1328c
152427230b4c7
hex131cdffb77c

1313421113212 has 48 divisors (see below), whose sum is σ = 2510763363360. Its totient is φ = 597518235648.

The previous prime is 1313421113201. The next prime is 1313421113287. The reversal of 1313421113212 is 2123111243131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6038868 + ... + 6252580.

It is an arithmetic number, because the mean of its divisors is an integer number (52307570070).

Almost surely, 21313421113212 is an apocalyptic number.

It is an amenable number.

1313421113212 is a deficient number, since it is larger than the sum of its proper divisors (1197342250148).

1313421113212 is a wasteful number, since it uses less digits than its factorization.

1313421113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215422 (or 215420 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

Adding to 1313421113212 its reverse (2123111243131), we get a palindrome (3436532356343).

The spelling of 1313421113212 in words is "one trillion, three hundred thirteen billion, four hundred twenty-one million, one hundred thirteen thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 73 146 292 949 1619 1898 3238 3796 6476 21047 42094 84188 118187 213713 236374 427426 472748 854852 1536431 2778269 3072862 5556538 6145724 11113076 15601049 31202098 62404196 202813637 346001347 405627274 692002694 811254548 1384005388 4498017511 8996035022 17992070044 25258098331 50516196662 101032393324 328355278303 656710556606 1313421113212