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488238871679 = 13197190643839
BaseRepresentation
bin1110001101011010100…
…11011111010001111111
31201200020012120111020022
413012231103133101333
530444403122343204
61012143245242355
750163004635446
oct7065523372177
91650205514208
10488238871679
11179074129739
127a75a2633bb
133706b630650
14198b9225d5d
15ca783495be
hex71ad4df47f

488238871679 has 8 divisors (see below), whose sum is σ = 528464724480. Its totient is φ = 448394306976.

The previous prime is 488238871643. The next prime is 488238871723. The reversal of 488238871679 is 976178832884.

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 488238871679 - 224 = 488222094463 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 (488238871079) 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, 95319359 + ... + 95324480.

It is an arithmetic number, because the mean of its divisors is an integer number (66058090560).

Almost surely, 2488238871679 is an apocalyptic number.

488238871679 is a deficient number, since it is larger than the sum of its proper divisors (40225852801).

488238871679 is a wasteful number, since it uses less digits than its factorization.

488238871679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190644049.

The product of its digits is 260112384, while the sum is 71.

The spelling of 488238871679 in words is "four hundred eighty-eight billion, two hundred thirty-eight million, eight hundred seventy-one thousand, six hundred seventy-nine".

Divisors: 1 13 197 2561 190643839 2478369907 37556836283 488238871679