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488440868 = 22122110217
BaseRepresentation
bin11101000111010…
…000010000100100
31021001002100220112
4131013100100210
52000020101433
6120244552152
715050451566
oct3507202044
91231070815
10488440868
11230791943
121176b2658
137a268986
1448c27336
152cd33348
hex1d1d0424

488440868 has 6 divisors (see below), whose sum is σ = 854771526. Its totient is φ = 244220432.

The previous prime is 488440861. The next prime is 488440871. The reversal of 488440868 is 868044884.

It can be written as a sum of positive squares in only one way, i.e., 434388964 + 54051904 = 20842^2 + 7352^2 .

It is not an unprimeable number, because it can be changed into a prime (488440861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055105 + ... + 61055112.

It is an arithmetic number, because the mean of its divisors is an integer number (142461921).

Almost surely, 2488440868 is an apocalyptic number.

It is an amenable number.

488440868 is a deficient number, since it is larger than the sum of its proper divisors (366330658).

488440868 is a wasteful number, since it uses less digits than its factorization.

488440868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122110221 (or 122110219 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 50.

The square root of 488440868 is about 22100.6983600066. The cubic root of 488440868 is about 787.5364520962.

The spelling of 488440868 in words is "four hundred eighty-eight million, four hundred forty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 122110217 244220434 488440868