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312012013124443 = 1316258138059013
BaseRepresentation
bin100011011110001011111010…
…1001101010011101101011011
31111220202001112122211122100111
41012330113311031103231123
5311344001100324440233
63023332201241145151
7122502060356411032
oct10674276515235533
91456661478748314
10312012013124443
11904646082aa545
122abb2027a8b1b7
13105137b68a2c58
145709667a8b719
152611236243acd
hex11bc5f5353b5b

312012013124443 has 8 divisors (see below), whose sum is σ = 314398816267536. Its totient is φ = 309625286224800.

The previous prime is 312012013124423. The next prime is 312012013124473. The reversal of 312012013124443 is 344421310210213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312012013124443 - 229 = 312011476253531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312012013124423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10831396 + ... + 27227617.

It is an arithmetic number, because the mean of its divisors is an integer number (39299852033442).

Almost surely, 2312012013124443 is an apocalyptic number.

312012013124443 is a deficient number, since it is larger than the sum of its proper divisors (2386803143093).

312012013124443 is a wasteful number, since it uses less digits than its factorization.

312012013124443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38121725.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 312012013124443 its reverse (344421310210213), we get a palindrome (656433323334656).

The spelling of 312012013124443 in words is "three hundred twelve trillion, twelve billion, thirteen million, one hundred twenty-four thousand, four hundred forty-three".

Divisors: 1 131 62581 8198111 38059013 4985730703 2381771092553 312012013124443