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489250160 = 24577911059
BaseRepresentation
bin11101001010010…
…101110101110000
31021002121111001022
4131022111311300
52000222001120
6120314155012
715060362210
oct3512256560
91232544038
10489250160
11231194983
12117a22a68
137a490149
1448d98240
152ce43025
hex1d295d70

489250160 has 80 divisors (see below), whose sum is σ = 1316582400. Its totient is φ = 165604608.

The previous prime is 489250141. The next prime is 489250183. The reversal of 489250160 is 61052984.

It is a Cunningham number, because it is equal to 221192-1.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 489250160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38711 + ... + 49769.

It is an arithmetic number, because the mean of its divisors is an integer number (16457280).

Almost surely, 2489250160 is an apocalyptic number.

489250160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 489250160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658291200).

489250160 is an abundant number, since it is smaller than the sum of its proper divisors (827332240).

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

489250160 is a wasteful number, since it uses less digits than its factorization.

489250160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11158 (or 11152 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 489250160 is about 22118.9999773950. Note that the first 4 decimals coincide. The cubic root of 489250160 is about 787.9711654269.

The spelling of 489250160 in words is "four hundred eighty-nine million, two hundred fifty thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 79 80 112 140 158 280 316 395 553 560 632 790 1106 1264 1580 2212 2765 3160 4424 5530 6320 8848 11059 11060 22118 22120 44236 44240 55295 77413 88472 110590 154826 176944 221180 309652 387065 442360 619304 774130 873661 884720 1238608 1548260 1747322 3096520 3494644 4368305 6115627 6193040 6989288 8736610 12231254 13978576 17473220 24462508 30578135 34946440 48925016 61156270 69892880 97850032 122312540 244625080 489250160