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489311311 = 838596863
BaseRepresentation
bin11101001010100…
…100110001001111
31021002201120221011
4131022210301033
52000230430221
6120315350051
715061035406
oct3512446117
91232646834
10489311311
11231226915
12117a52327
137a4b1c28
1448db263d
152ce561e1
hex1d2a4c4f

489311311 has 8 divisors (see below), whose sum is σ = 495855360. Its totient is φ = 482782872.

The previous prime is 489311309. The next prime is 489311327. The reversal of 489311311 is 113113984.

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 489311311 - 21 = 489311309 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 (489311111) 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, 67866 + ... + 74728.

It is an arithmetic number, because the mean of its divisors is an integer number (61981920).

Almost surely, 2489311311 is an apocalyptic number.

489311311 is a deficient number, since it is larger than the sum of its proper divisors (6544049).

489311311 is an equidigital number, since it uses as much as digits as its factorization.

489311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7805.

The product of its digits is 2592, while the sum is 31.

The square root of 489311311 is about 22120.3822525742. The cubic root of 489311311 is about 788.0039933619.

The spelling of 489311311 in words is "four hundred eighty-nine million, three hundred eleven thousand, three hundred eleven".

Divisors: 1 83 859 6863 71297 569629 5895317 489311311