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47243618638534 = 2171739379889507
BaseRepresentation
bin10101011110111110000110…
…00110110101101011000110
320012021110001000100002120001
422233133003012311223012
522143014412332413114
6244251230242431514
712644144624422303
oct1257370306655306
9205243030302501
1047243618638534
11140649a70a030a
12537016836259a
132049091b9c436
14b948638020aa
1556ddacdbb374
hex2af7c31b5ac6

47243618638534 has 16 divisors (see below), whose sum is σ = 75038297516208. Its totient is φ = 22231012613632.

The previous prime is 47243618638499. The next prime is 47243618638537. The reversal of 47243618638534 is 43583681634274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47243618638537) 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, 39353392 + ... + 40536115.

It is an arithmetic number, because the mean of its divisors is an integer number (4689893594763).

Almost surely, 247243618638534 is an apocalyptic number.

47243618638534 is a deficient number, since it is larger than the sum of its proper divisors (27794678877674).

47243618638534 is a wasteful number, since it uses less digits than its factorization.

47243618638534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79906919.

The product of its digits is 278691840, while the sum is 64.

The spelling of 47243618638534 in words is "forty-seven trillion, two hundred forty-three billion, six hundred eighteen million, six hundred thirty-eight thousand, five hundred thirty-four".

Divisors: 1 2 17 34 17393 34786 295681 591362 79889507 159779014 1358121619 2716243238 1389518195251 2779036390502 23621809319267 47243618638534