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312030001213212 = 223185233154144507
BaseRepresentation
bin100011011110010100010010…
…1011000011010111100011100
31111220210202222021121020020110
41012330220211120122330130
5311344244420302310322
63023344334220250020
7122503265211553362
oct10674504530327434
91456722867536213
10312030001213212
11904711a9096907
122abb56080a0910
13105153c24c2a69
14570a492a97632
15261193a547c0c
hex11bca2561af1c

312030001213212 has 48 divisors (see below), whose sum is σ = 728148753585792. Its totient is φ = 103998751053120.

The previous prime is 312030001213013. The next prime is 312030001213253. The reversal of 312030001213212 is 212312100030213.

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, 7010785063 + ... + 7010829569.

It is an arithmetic number, because the mean of its divisors is an integer number (15169765699704).

Almost surely, 2312030001213212 is an apocalyptic number.

It is an amenable number.

312030001213212 is an abundant number, since it is smaller than the sum of its proper divisors (416118752372580).

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

312030001213212 is a wasteful number, since it uses less digits than its factorization.

312030001213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94578 (or 94576 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 312030001213212 its reverse (212312100030213), we get a palindrome (524342101243425).

The spelling of 312030001213212 in words is "three hundred twelve trillion, thirty billion, one million, two hundred thirteen thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 18523 31541 37046 44507 55569 63082 74092 89014 94623 111138 126164 133521 178028 189246 222276 267042 378492 534084 584233943 824403161 1168467886 1403795287 1648806322 1752701829 2336935772 2473209483 2807590574 3297612644 3505403658 4211385861 4946418966 5615181148 7010807316 8422771722 9892837932 16845543444 26002500101101 52005000202202 78007500303303 104010000404404 156015000606606 312030001213212