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14392720 = 245179909
BaseRepresentation
bin110110111001…
…110110010000
31000002020002201
4312321312100
512141031340
61232252544
7233223166
oct66716620
930066081
1014392720
118140511
1249a1154
132c9c104
141ca9236
1513e479a
hexdb9d90

14392720 has 20 divisors (see below), whose sum is σ = 33463260. Its totient is φ = 5757056.

The previous prime is 14392717. The next prime is 14392801. The reversal of 14392720 is 2729341.

It can be written as a sum of positive squares in 2 ways, for example, as 5607424 + 8785296 = 2368^2 + 2964^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89875 + ... + 90034.

It is an arithmetic number, because the mean of its divisors is an integer number (1673163).

Almost surely, 214392720 is an apocalyptic number.

14392720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14392720 is an abundant number, since it is smaller than the sum of its proper divisors (19070540).

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

14392720 is a wasteful number, since it uses less digits than its factorization.

14392720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179922 (or 179916 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 14392720 is about 3793.7738467125. The cubic root of 14392720 is about 243.2470743652.

The spelling of 14392720 in words is "fourteen million, three hundred ninety-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 179909 359818 719636 899545 1439272 1799090 2878544 3598180 7196360 14392720