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268302080 = 285263797
BaseRepresentation
bin11111111110111…
…11011100000000
3200200212011021002
433333133130000
51022141131310
642342351132
76435346544
oct1777373400
9620764232
10268302080
111284a4362
1275a2b4a8
1343780037
14278c1a24
151884bda5
hexffdf700

268302080 has 72 divisors (see below), whose sum is σ = 645920352. Its totient is φ = 106778624.

The previous prime is 268302071. The next prime is 268302119. The reversal of 268302080 is 80203862.

It is a super-2 number, since 2×2683020802 = 143972012264652800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336242 + ... + 337038.

It is an arithmetic number, because the mean of its divisors is an integer number (8971116).

Almost surely, 2268302080 is an apocalyptic number.

268302080 is a gapful number since it is divisible by the number (20) 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 268302080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322960176).

268302080 is an abundant number, since it is smaller than the sum of its proper divisors (377618272).

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

268302080 is an equidigital number, since it uses as much as digits as its factorization.

268302080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 268302080 is about 16379.9291817761. The cubic root of 268302080 is about 644.9727208382.

The spelling of 268302080 in words is "two hundred sixty-eight million, three hundred two thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 263 320 526 640 797 1052 1280 1315 1594 2104 2630 3188 3985 4208 5260 6376 7970 8416 10520 12752 15940 16832 21040 25504 31880 33664 42080 51008 63760 67328 84160 102016 127520 168320 204032 209611 255040 336640 419222 510080 838444 1020160 1048055 1676888 2096110 3353776 4192220 6707552 8384440 13415104 16768880 26830208 33537760 53660416 67075520 134151040 268302080