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488724581 is a prime number
BaseRepresentation
bin11101001000010…
…101100001100101
31021001121210002102
4131020111201211
52000103141311
6120255021445
715053043002
oct3510254145
91231553072
10488724581
11230966014
1211780a885
137a337b57
1448c9c8a9
152cd8c43b
hex1d215865

488724581 has 2 divisors, whose sum is σ = 488724582. Its totient is φ = 488724580.

The previous prime is 488724569. The next prime is 488724583. The reversal of 488724581 is 185427884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339664900 + 149059681 = 18430^2 + 12209^2 .

It is a cyclic number.

It is not a de Polignac number, because 488724581 - 218 = 488462437 is a prime.

It is a super-2 number, since 2×4887245812 = 477703432147251122, which contains 22 as substring.

Together with 488724583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (488724583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244362290 + 244362291.

It is an arithmetic number, because the mean of its divisors is an integer number (244362291).

Almost surely, 2488724581 is an apocalyptic number.

It is an amenable number.

488724581 is a deficient number, since it is larger than the sum of its proper divisors (1).

488724581 is an equidigital number, since it uses as much as digits as its factorization.

488724581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 573440, while the sum is 47.

The square root of 488724581 is about 22107.1160715277. The cubic root of 488724581 is about 787.6889039056.

The spelling of 488724581 in words is "four hundred eighty-eight million, seven hundred twenty-four thousand, five hundred eighty-one".