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488309653 = 13317118493
BaseRepresentation
bin11101000110110…
…000001110010101
31021000211200220201
4131012300032111
52000001402103
6120242100501
715046364206
oct3506601625
91230750821
10488309653
112307022a7
1211764a731
137a221030
1448bd15ad
152cd0951d
hex1d1b0395

488309653 has 8 divisors (see below), whose sum is σ = 527535288. Its totient is φ = 449321664.

The previous prime is 488309611. The next prime is 488309669. The reversal of 488309653 is 356903884.

It can be written as a sum of positive squares in 4 ways, for example, as 46553329 + 441756324 = 6823^2 + 21018^2 .

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 488309653 - 29 = 488309141 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 (488309053) 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, 55126 + ... + 63367.

It is an arithmetic number, because the mean of its divisors is an integer number (65941911).

Almost surely, 2488309653 is an apocalyptic number.

It is an amenable number.

488309653 is a deficient number, since it is larger than the sum of its proper divisors (39225635).

488309653 is a wasteful number, since it uses less digits than its factorization.

488309653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118823.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 488309653 is about 22097.7295892587. The cubic root of 488309653 is about 787.4659243843.

The spelling of 488309653 in words is "four hundred eighty-eight million, three hundred nine thousand, six hundred fifty-three".

Divisors: 1 13 317 4121 118493 1540409 37562281 488309653