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468989 = 2811669
BaseRepresentation
bin1110010011111111101
3212211022222
41302133331
5110001424
614015125
73662213
oct1623775
9784288
10468989
112a03a4
121a74a5
13135611
14c2cb3
1593e5e
hex727fd

468989 has 4 divisors (see below), whose sum is σ = 470940. Its totient is φ = 467040.

The previous prime is 468983. The next prime is 469009. The reversal of 468989 is 989864.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 284089 + 184900 = 533^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 468989 - 24 = 468973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (468983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554 + ... + 1115.

It is an arithmetic number, because the mean of its divisors is an integer number (117735).

2468989 is an apocalyptic number.

It is an amenable number.

468989 is a deficient number, since it is larger than the sum of its proper divisors (1951).

468989 is a wasteful number, since it uses less digits than its factorization.

468989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950.

The product of its digits is 124416, while the sum is 44.

The square root of 468989 is about 684.8277155606. The cubic root of 468989 is about 77.6940126913.

The spelling of 468989 in words is "four hundred sixty-eight thousand, nine hundred eighty-nine".

Divisors: 1 281 1669 468989