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461000489 = 1845724977
BaseRepresentation
bin11011011110100…
…100111100101001
31012010110020210012
4123132210330221
51421004003424
6113424501305
714265303515
oct3336447451
91163406705
10461000489
1121724a544
1210a47a835
137467ba71
1445323145
152a712b0e
hex1b7a4f29

461000489 has 4 divisors (see below), whose sum is σ = 461043924. Its totient is φ = 460957056.

The previous prime is 461000483. The next prime is 461000521. The reversal of 461000489 is 984000164.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 140304025 + 320696464 = 11845^2 + 17908^2 .

It is a cyclic number.

It is not a de Polignac number, because 461000489 - 28 = 461000233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (461000483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5969 + ... + 30945.

It is an arithmetic number, because the mean of its divisors is an integer number (115260981).

Almost surely, 2461000489 is an apocalyptic number.

It is an amenable number.

461000489 is a deficient number, since it is larger than the sum of its proper divisors (43435).

461000489 is a wasteful number, since it uses less digits than its factorization.

461000489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43434.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 461000489 is about 21470.9219410812. The cubic root of 461000489 is about 772.5035111189.

The spelling of 461000489 in words is "four hundred sixty-one million, four hundred eighty-nine", and thus it is an aban number.

Divisors: 1 18457 24977 461000489