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312132301212 = 223891816172617
BaseRepresentation
bin1001000101011001000…
…10001111000110011100
31002211200000222210020110
410202230202033012130
520103221332114322
6355220330250020
731356633533034
oct4425442170634
91084600883213
10312132301212
11110413601816
12505b0586910
1323584506474
141117055c8c4
1581bc864c0c
hex48ac88f19c

312132301212 has 96 divisors (see below), whose sum is σ = 742044663360. Its totient is φ = 102101852160.

The previous prime is 312132301189. The next prime is 312132301279. The reversal of 312132301212 is 212103231213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119269728 + ... + 119272344.

It is an arithmetic number, because the mean of its divisors is an integer number (7729631910).

Almost surely, 2312132301212 is an apocalyptic number.

It is an amenable number.

312132301212 is an abundant number, since it is smaller than the sum of its proper divisors (429912362148).

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

312132301212 is a wasteful number, since it uses less digits than its factorization.

312132301212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511 (or 3509 counting only the distinct ones).

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

Adding to 312132301212 its reverse (212103231213), we get a palindrome (524235532425).

The spelling of 312132301212 in words is "three hundred twelve billion, one hundred thirty-two million, three hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 89 178 181 267 356 362 534 543 617 724 1068 1086 1234 1851 2172 2468 2617 3702 5234 7404 7851 10468 15702 16109 31404 32218 48327 54913 64436 96654 109826 111677 164739 193308 219652 223354 232913 329478 335031 446708 465826 473677 658956 670062 698739 931652 947354 1340124 1397478 1421031 1614689 1894708 2794956 2842062 3229378 4844067 5684124 6458756 9688134 9939253 19376268 19878506 29817759 39757012 42157253 59635518 84314506 119271036 126471759 143707321 168629012 252943518 287414642 292258709 431121963 505887036 574829284 584517418 862243926 876776127 1169034836 1724487852 1753552254 3507104508 26011025101 52022050202 78033075303 104044100404 156066150606 312132301212