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489257005 = 5191512311
BaseRepresentation
bin11101001010010…
…111100000101101
31021002121211102211
4131022113200231
52000222211010
6120314250421
715060421156
oct3512274055
91232554384
10489257005
1123119a036
12117a26a11
137a4932b3
1448d9a92d
152ce4508a
hex1d29782d

489257005 has 8 divisors (see below), whose sum is σ = 590183424. Its totient is φ = 389355600.

The previous prime is 489256993. The next prime is 489257009. The reversal of 489257005 is 500752984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-489257005 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 (489257009) 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, 255201 + ... + 257110.

It is an arithmetic number, because the mean of its divisors is an integer number (73772928).

Almost surely, 2489257005 is an apocalyptic number.

It is an amenable number.

489257005 is a deficient number, since it is larger than the sum of its proper divisors (100926419).

489257005 is a wasteful number, since it uses less digits than its factorization.

489257005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512507.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 489257005 is about 22119.1547080805. The cubic root of 489257005 is about 787.9748401915.

The spelling of 489257005 in words is "four hundred eighty-nine million, two hundred fifty-seven thousand, five".

Divisors: 1 5 191 955 512311 2561555 97851401 489257005