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730461 = 3243487
BaseRepresentation
bin10110010010101011101
31101010000010
42302111131
5141333321
623353433
76131424
oct2622535
91333003
10730461
11459896
122b2879
131c7634
141502bb
15e6676
hexb255d

730461 has 4 divisors (see below), whose sum is σ = 973952. Its totient is φ = 486972.

The previous prime is 730459. The next prime is 730469. The reversal of 730461 is 164037.

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, and also an emirpimes, since its reverse is a distinct semiprime: 164037 = 354679.

It is not a de Polignac number, because 730461 - 21 = 730459 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 730461.

It is not an unprimeable number, because it can be changed into a prime (730469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121741 + ... + 121746.

It is an arithmetic number, because the mean of its divisors is an integer number (243488).

2730461 is an apocalyptic number.

It is an amenable number.

730461 is a deficient number, since it is larger than the sum of its proper divisors (243491).

730461 is a wasteful number, since it uses less digits than its factorization.

730461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243490.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 730461 is about 854.6701117975. The cubic root of 730461 is about 90.0600833367.

Adding to 730461 its reverse (164037), we get a palindrome (894498).

It can be divided in two parts, 7304 and 61, that multiplied together give a palindrome (445544).

The spelling of 730461 in words is "seven hundred thirty thousand, four hundred sixty-one".

Divisors: 1 3 243487 730461