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1368280 = 23579433
BaseRepresentation
bin101001110000011011000
32120111221001
411032003120
5322241110
645154344
714426104
oct5160330
92514831
101368280
11855011
1255b9b4
1338ba44
14278904
151c063a
hex14e0d8

1368280 has 32 divisors (see below), whose sum is σ = 3124800. Its totient is φ = 539136.

The previous prime is 1368271. The next prime is 1368281. The reversal of 1368280 is 828631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368281) 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, 2944 + ... + 3376.

It is an arithmetic number, because the mean of its divisors is an integer number (97650).

21368280 is an apocalyptic number.

1368280 is a gapful number since it is divisible by the number (10) 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 1368280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1562400).

1368280 is an abundant number, since it is smaller than the sum of its proper divisors (1756520).

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

1368280 is a wasteful number, since it uses less digits than its factorization.

1368280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1368280 is about 1169.7350127272. The cubic root of 1368280 is about 111.0175553220.

The spelling of 1368280 in words is "one million, three hundred sixty-eight thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 79 158 316 395 433 632 790 866 1580 1732 2165 3160 3464 4330 8660 17320 34207 68414 136828 171035 273656 342070 684140 1368280