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312342243243413 = 1438212171742953
BaseRepresentation
bin100011100000100101101100…
…0011101001111010110010101
31111221220121220222001211100112
41013001023120131033112111
5311414403403232242123
63024144013510452405
7122534660650202135
oct10701133035172625
91457817828054315
10312342243243413
1190581668624639
122b046029364105
1310538993668106
14571b633a1aac5
152619b12834d78
hex11c12d874f595

312342243243413 has 4 divisors (see below), whose sum is σ = 312344415130188. Its totient is φ = 312340071356640.

The previous prime is 312342243243389. The next prime is 312342243243529. The reversal of 312342243243413 is 314342342243213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85205785567204 + 227136457676209 = 9230698^2 + 15071047^2 .

It is a cyclic number.

It is not a de Polignac number, because 312342243243413 - 220 = 312342242194837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312342243443413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085727656 + ... + 1086015297.

It is an arithmetic number, because the mean of its divisors is an integer number (78086103782547).

Almost surely, 2312342243243413 is an apocalyptic number.

It is an amenable number.

312342243243413 is a deficient number, since it is larger than the sum of its proper divisors (2171886775).

312342243243413 is a wasteful number, since it uses less digits than its factorization.

312342243243413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171886774.

The product of its digits is 995328, while the sum is 41.

Adding to 312342243243413 its reverse (314342342243213), we get a palindrome (626684585486626).

The spelling of 312342243243413 in words is "three hundred twelve trillion, three hundred forty-two billion, two hundred forty-three million, two hundred forty-three thousand, four hundred thirteen".

Divisors: 1 143821 2171742953 312342243243413