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488681271 = 321326915527
BaseRepresentation
bin11101001000001…
…010111100110111
31021001112120200100
4131020022330313
52000100300041
6120254045143
715052502511
oct3510127467
91231476610
10488681271
11230936521
121177a97b3
137a321220
1448c8abb1
152cd7e6b6
hex1d20af37

488681271 has 24 divisors (see below), whose sum is σ = 763045920. Its totient is φ = 299589696.

The previous prime is 488681261. The next prime is 488681293. The reversal of 488681271 is 172186884.

It is not a de Polignac number, because 488681271 - 25 = 488681239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488681251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23710 + ... + 39236.

It is an arithmetic number, because the mean of its divisors is an integer number (31793580).

Almost surely, 2488681271 is an apocalyptic number.

488681271 is a deficient number, since it is larger than the sum of its proper divisors (274364649).

488681271 is a wasteful number, since it uses less digits than its factorization.

488681271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15815 (or 15812 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The square root of 488681271 is about 22106.1365009809. The cubic root of 488681271 is about 787.6656353030.

The spelling of 488681271 in words is "four hundred eighty-eight million, six hundred eighty-one thousand, two hundred seventy-one".

Divisors: 1 3 9 13 39 117 269 807 2421 3497 10491 15527 31473 46581 139743 201851 605553 1816659 4176763 12530289 37590867 54297919 162893757 488681271