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468409 = 3831223
BaseRepresentation
bin1110010010110111001
3212210112111
41302112321
5104442114
614012321
73660424
oct1622671
9783474
10468409
1129aa17
121a70a1
13135286
14c29bb
1593bc4
hex725b9

468409 has 4 divisors (see below), whose sum is σ = 470016. Its totient is φ = 466804.

The previous prime is 468389. The next prime is 468421. The reversal of 468409 is 904864.

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 468409 - 29 = 467897 is a prime.

It is a Duffinian number.

468409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (468439) 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, 229 + ... + 994.

It is an arithmetic number, because the mean of its divisors is an integer number (117504).

2468409 is an apocalyptic number.

It is an amenable number.

468409 is a deficient number, since it is larger than the sum of its proper divisors (1607).

468409 is a wasteful number, since it uses less digits than its factorization.

468409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 468409 is about 684.4041203850. The cubic root of 468409 is about 77.6619713454.

The spelling of 468409 in words is "four hundred sixty-eight thousand, four hundred nine".

Divisors: 1 383 1223 468409