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489877241 = 769982463
BaseRepresentation
bin11101001100101…
…110111011111001
31021010210100020112
4131030232323321
52000402032431
6120335434105
715065613350
oct3514567371
91233710215
10489877241
11231583027
12118085935
137a64c6b9
14490bc997
152d018c2b
hex1d32eef9

489877241 has 4 divisors (see below), whose sum is σ = 559859712. Its totient is φ = 419894772.

The previous prime is 489877237. The next prime is 489877243. The reversal of 489877241 is 142778984.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 489877241 - 22 = 489877237 is a prime.

It is a super-2 number, since 2×4898772412 = 479959422499544162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 489877241.

It is not an unprimeable number, because it can be changed into a prime (489877243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34991225 + ... + 34991238.

It is an arithmetic number, because the mean of its divisors is an integer number (139964928).

Almost surely, 2489877241 is an apocalyptic number.

It is an amenable number.

489877241 is a deficient number, since it is larger than the sum of its proper divisors (69982471).

489877241 is an equidigital number, since it uses as much as digits as its factorization.

489877241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69982470.

The product of its digits is 903168, while the sum is 50.

The square root of 489877241 is about 22133.1706043215. The cubic root of 489877241 is about 788.3076741148.

The spelling of 489877241 in words is "four hundred eighty-nine million, eight hundred seventy-seven thousand, two hundred forty-one".

Divisors: 1 7 69982463 489877241