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485298721 = 1912540831
BaseRepresentation
bin11100111011010…
…001001000100001
31020211011201200201
4130323101020201
51443214024341
6120053345201
715011654035
oct3473211041
91224151621
10485298721
11229a36126
12116638201
137970870b
144864a1c5
152c912331
hex1ced1221

485298721 has 4 divisors (see below), whose sum is σ = 487839744. Its totient is φ = 482757700.

The previous prime is 485298719. The next prime is 485298733. The reversal of 485298721 is 127892584.

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 485298721 - 21 = 485298719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (485298791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270225 + ... + 1270606.

It is an arithmetic number, because the mean of its divisors is an integer number (121959936).

Almost surely, 2485298721 is an apocalyptic number.

It is an amenable number.

485298721 is a deficient number, since it is larger than the sum of its proper divisors (2541023).

485298721 is a wasteful number, since it uses less digits than its factorization.

485298721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2541022.

The product of its digits is 322560, while the sum is 46.

The square root of 485298721 is about 22029.4966124966. The cubic root of 485298721 is about 785.8440734879.

The spelling of 485298721 in words is "four hundred eighty-five million, two hundred ninety-eight thousand, seven hundred twenty-one".

Divisors: 1 191 2540831 485298721