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212454205043 = 1731403138909
BaseRepresentation
bin1100010111011101000…
…0011110011001110011
3202022101022001212000212
43011313100132121303
511440101234030133
6241333342534335
721230545642463
oct3056720363163
9668338055025
10212454205043
1182112950843
12352125973ab
131705a5c3682
14a3d6173ba3
1557d6a14148
hex317741e673

212454205043 has 8 divisors (see below), whose sum is σ = 232208012160. Its totient is φ = 193506675840.

The previous prime is 212454205031. The next prime is 212454205057. The reversal of 212454205043 is 340502454212.

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 212454205043 - 230 = 211380463219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212454205003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201568928 + ... + 201569981.

It is an arithmetic number, because the mean of its divisors is an integer number (29026001520).

Almost surely, 2212454205043 is an apocalyptic number.

212454205043 is a deficient number, since it is larger than the sum of its proper divisors (19753807117).

212454205043 is a wasteful number, since it uses less digits than its factorization.

212454205043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403138957.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 212454205043 its reverse (340502454212), we get a palindrome (552956659255).

The spelling of 212454205043 in words is "two hundred twelve billion, four hundred fifty-four million, two hundred five thousand, forty-three".

Divisors: 1 17 31 527 403138909 6853361453 12497306179 212454205043