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489029983487 is a prime number
BaseRepresentation
bin1110001110111000111…
…01010101110011111111
31201202021100012010121122
413013130131111303333
531003013133432422
61012353545421155
750221422163043
oct7073435256377
91652240163548
10489029983487
1117943a749751
127a93b19a7bb
13371664c0a46
141995231a023
15cac2a17d42
hex71dc755cff

489029983487 has 2 divisors, whose sum is σ = 489029983488. Its totient is φ = 489029983486.

The previous prime is 489029983447. The next prime is 489029983627. The reversal of 489029983487 is 784389920984.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 489029983487 - 226 = 488962874623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 489029983487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489029983427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244514991743 + 244514991744.

It is an arithmetic number, because the mean of its divisors is an integer number (244514991744).

Almost surely, 2489029983487 is an apocalyptic number.

489029983487 is a deficient number, since it is larger than the sum of its proper divisors (1).

489029983487 is an equidigital number, since it uses as much as digits as its factorization.

489029983487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 250822656, while the sum is 71.

The spelling of 489029983487 in words is "four hundred eighty-nine billion, twenty-nine million, nine hundred eighty-three thousand, four hundred eighty-seven".