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489906 = 232171601
BaseRepresentation
bin1110111100110110010
3220220000200
41313212302
5111134111
614300030
74110204
oct1674662
9826020
10489906
1130508a
121b7616
13141cb1
14ca774
159a256
hex779b2

489906 has 24 divisors (see below), whose sum is σ = 1124604. Its totient is φ = 153600.

The previous prime is 489901. The next prime is 489911. The reversal of 489906 is 609984.

It is an interprime number because it is at equal distance from previous prime (489901) and next prime (489911).

It can be written as a sum of positive squares in 2 ways, for example, as 370881 + 119025 = 609^2 + 345^2 .

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 495 + ... + 1106.

2489906 is an apocalyptic number.

489906 is an abundant number, since it is smaller than the sum of its proper divisors (634698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489906 is a wasteful number, since it uses less digits than its factorization.

489906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626 (or 1623 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 489906 is about 699.9328539224. The cubic root of 489906 is about 78.8323100086.

The spelling of 489906 in words is "four hundred eighty-nine thousand, nine hundred six".

Divisors: 1 2 3 6 9 17 18 34 51 102 153 306 1601 3202 4803 9606 14409 27217 28818 54434 81651 163302 244953 489906