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1312420514412 = 223797161072719
BaseRepresentation
bin10011000110010010010…
…110111100101001101100
311122110120211201221220110
4103012102112330221230
5133000314122430122
62442530114220020
7163551001210560
oct23062226745154
94573524657813
101312420514412
1146665a190537
12192432b84610
13969b7403b57
1447742d8b6a0
152421455c90c
hex131925bca6c

1312420514412 has 48 divisors (see below), whose sum is σ = 3535868349440. Its totient is φ = 371111542272.

The previous prime is 1312420514401. The next prime is 1312420514413. The reversal of 1312420514412 is 2144150242131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312420514412.

It is not an unprimeable number, because it can be changed into a prime (1312420514413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80528212 + ... + 80544507.

Almost surely, 21312420514412 is an apocalyptic number.

1312420514412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312420514412 is an abundant number, since it is smaller than the sum of its proper divisors (2223447835028).

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

1312420514412 is a wasteful number, since it uses less digits than its factorization.

1312420514412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161072830 (or 161072828 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 1312420514412 its reverse (2144150242131), we get a palindrome (3456570756543).

The spelling of 1312420514412 in words is "one trillion, three hundred twelve billion, four hundred twenty million, five hundred fourteen thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 97 194 291 388 582 679 1164 1358 2037 2716 4074 8148 161072719 322145438 483218157 644290876 966436314 1127509033 1932872628 2255018066 3382527099 4510036132 6765054198 13530108396 15624053743 31248107486 46872161229 62496214972 93744322458 109368376201 187488644916 218736752402 328105128603 437473504804 656210257206 1312420514412