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121412140312 = 231929190114489
BaseRepresentation
bin111000100010010111…
…0100011110100011000
3102121101102100202211111
41301010232203310120
53442123001442222
6131435335310104
711525464110361
oct1610456436430
9377342322744
10121412140312
1147543a96031
121b64481b334
13b5ab926958
145c3aad8b68
153258e47777
hex1c44ba3d18

121412140312 has 64 divisors (see below), whose sum is σ = 248039820000. Its totient is φ = 55494835200.

The previous prime is 121412140309. The next prime is 121412140313. The reversal of 121412140312 is 213041214121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121412140313) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8372364 + ... + 8386852.

Almost surely, 2121412140312 is an apocalyptic number.

It is an amenable number.

121412140312 is an abundant number, since it is smaller than the sum of its proper divisors (126627679688).

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

121412140312 is a wasteful number, since it uses less digits than its factorization.

121412140312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16444 (or 16440 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 121412140312 its reverse (213041214121), we get a palindrome (334453354433).

The spelling of 121412140312 in words is "one hundred twenty-one billion, four hundred twelve million, one hundred forty thousand, three hundred twelve".

Divisors: 1 2 4 8 19 29 38 58 76 116 152 232 551 1102 1901 2204 3802 4408 7604 14489 15208 28978 36119 55129 57956 72238 110258 115912 144476 220516 275291 288952 420181 441032 550582 840362 1047451 1101164 1680724 2094902 2202328 3361448 4189804 7983439 8379608 15966878 27543589 31933756 55087178 63867512 110174356 220348712 523328191 798764081 1046656382 1597528162 2093312764 3195056324 4186625528 6390112648 15176517539 30353035078 60706070156 121412140312