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489654 = 232112473
BaseRepresentation
bin1110111100010110110
3220212200100
41313202312
5111132104
614254530
74106364
oct1674266
9825610
10489654
11304980
121b7446
13141b49
14ca634
159a139
hex778b6

489654 has 24 divisors (see below), whose sum is σ = 1157832. Its totient is φ = 148320.

The previous prime is 489653. The next prime is 489659. The reversal of 489654 is 456984.

It is a super-2 number, since 2×4896542 = 479522079432, which contains 22 as substring.

It is a d-powerful number, because it can be written as 48 + 83 + 67 + 9 + 57 + 48 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489653) 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, 1039 + ... + 1434.

It is an arithmetic number, because the mean of its divisors is an integer number (48243).

2489654 is an apocalyptic number.

489654 is an abundant number, since it is smaller than the sum of its proper divisors (668178).

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

489654 is a wasteful number, since it uses less digits than its factorization.

489654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492 (or 2489 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 489654 is about 699.7528134992. The cubic root of 489654 is about 78.8187909871.

It can be divided in two parts, 4896 and 54, that added together give a triangular number (4950 = T99).

The spelling of 489654 in words is "four hundred eighty-nine thousand, six hundred fifty-four".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 2473 4946 7419 14838 22257 27203 44514 54406 81609 163218 244827 489654