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68053320 = 23325238219
BaseRepresentation
bin1000000111001…
…10100101001000
311202001110121100
410003212211020
5114410201240
610430341400
71454305116
oct403464510
9152043540
1068053320
1135461515
121a95a860
131113974a
149076ab6
155e93e30
hex40e6948

68053320 has 96 divisors (see below), whose sum is σ = 230817600. Its totient is φ = 17356416.

The previous prime is 68053319. The next prime is 68053327. The reversal of 68053320 is 2335086.

It is not an unprimeable number, because it can be changed into a prime (68053327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4171 + ... + 12389.

It is an arithmetic number, because the mean of its divisors is an integer number (2404350).

Almost surely, 268053320 is an apocalyptic number.

68053320 is a gapful number since it is divisible by the number (60) 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 68053320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115408800).

68053320 is an abundant number, since it is smaller than the sum of its proper divisors (162764280).

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

68053320 is a wasteful number, since it uses less digits than its factorization.

68053320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8259 (or 8252 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 68053320 is about 8249.4436176023. The cubic root of 68053320 is about 408.2721655796.

The spelling of 68053320 in words is "sixty-eight million, fifty-three thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 23 24 30 36 40 45 46 60 69 72 90 92 115 120 138 180 184 207 230 276 345 360 414 460 552 690 828 920 1035 1380 1656 2070 2760 4140 8219 8280 16438 24657 32876 41095 49314 65752 73971 82190 98628 123285 147942 164380 189037 197256 246570 295884 328760 369855 378074 493140 567111 591768 739710 756148 945185 986280 1134222 1479420 1512296 1701333 1890370 2268444 2835555 2958840 3402666 3780740 4536888 5671110 6805332 7561480 8506665 11342220 13610664 17013330 22684440 34026660 68053320