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288485968 = 24192943761
BaseRepresentation
bin10001001100011…
…111001001010000
3202002211121100111
4101030133021100
51042323022333
644343131104
710102042651
oct2114371120
9662747314
10288485968
1113892a861
1280743a94
13479c9074
142a457528
151a4d74cd
hex1131f250

288485968 has 80 divisors (see below), whose sum is σ = 623620800. Its totient is φ = 128701440.

The previous prime is 288485947. The next prime is 288486007. The reversal of 288485968 is 869584882.

It is a Harshad number since it is a multiple of its sum of digits (58).

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, 378708 + ... + 379468.

It is an arithmetic number, because the mean of its divisors is an integer number (7795260).

Almost surely, 2288485968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 288485968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311810400).

288485968 is an abundant number, since it is smaller than the sum of its proper divisors (335134832).

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

288485968 is a wasteful number, since it uses less digits than its factorization.

288485968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 854 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 58.

The square root of 288485968 is about 16984.8746830820. The cubic root of 288485968 is about 660.7566834088.

The spelling of 288485968 in words is "two hundred eighty-eight million, four hundred eighty-five thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 16 19 29 38 43 58 76 86 116 152 172 232 304 344 464 551 688 761 817 1102 1247 1522 1634 2204 2494 3044 3268 4408 4988 6088 6536 8816 9976 12176 13072 14459 19952 22069 23693 28918 32723 44138 47386 57836 65446 88276 94772 115672 130892 176552 189544 231344 261784 353104 379088 419311 523568 621737 838622 948967 1243474 1677244 1897934 2486948 3354488 3795868 4973896 6708976 7591736 9947792 15183472 18030373 36060746 72121492 144242984 288485968