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472489 = 2320543
BaseRepresentation
bin1110011010110101001
3220000010121
41303112221
5110104424
614043241
74005343
oct1632651
9800117
10472489
112a2a96
121a9521
131370a4
14c4293
1594ee4
hex735a9

472489 has 4 divisors (see below), whose sum is σ = 493056. Its totient is φ = 451924.

The previous prime is 472477. The next prime is 472523. The reversal of 472489 is 984274.

It is a happy number.

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 472489 - 25 = 472457 is a prime.

It is a Duffinian number.

472489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (472469) 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, 10249 + ... + 10294.

It is an arithmetic number, because the mean of its divisors is an integer number (123264).

2472489 is an apocalyptic number.

It is an amenable number.

472489 is a deficient number, since it is larger than the sum of its proper divisors (20567).

472489 is a wasteful number, since it uses less digits than its factorization.

472489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20566.

The product of its digits is 16128, while the sum is 34.

The square root of 472489 is about 687.3783528742. The cubic root of 472489 is about 77.8868071058.

It can be divided in two parts, 472 and 489, that added together give a square (961 = 312).

The spelling of 472489 in words is "four hundred seventy-two thousand, four hundred eighty-nine".

Divisors: 1 23 20543 472489