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489041720 = 23517719179
BaseRepresentation
bin11101001001100…
…010111100111000
31021002012220010022
4131021202330320
52000143313340
6120305510012
715055533416
oct3511427470
91232186108
10489041720
11231062312
12117942308
137a4192cb
1448d422b6
152ce013b5
hex1d262f38

489041720 has 32 divisors (see below), whose sum is σ = 1165071600. Its totient is φ = 184109568.

The previous prime is 489041719. The next prime is 489041723. The reversal of 489041720 is 27140984.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489041723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358910 + ... + 360269.

Almost surely, 2489041720 is an apocalyptic number.

489041720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489041720 is an abundant number, since it is smaller than the sum of its proper divisors (676029880).

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

489041720 is a wasteful number, since it uses less digits than its factorization.

489041720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719207 (or 719203 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 489041720 is about 22114.2876891841. The cubic root of 489041720 is about 787.8592471939.

The spelling of 489041720 in words is "four hundred eighty-nine million, forty-one thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 719179 1438358 2876716 3595895 5753432 7191790 12226043 14383580 24452086 28767160 48904172 61130215 97808344 122260430 244520860 489041720