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14428730 = 251442873
BaseRepresentation
bin110111000010…
…101000111010
31000011001111102
4313002220322
512143204410
61233131402
7233433161
oct67025072
930131442
1014428730
118165578
1249b9b62
132cb2614
141cb83d8
1514002a5
hexdc2a3a

14428730 has 8 divisors (see below), whose sum is σ = 25971732. Its totient is φ = 5771488.

The previous prime is 14428727. The next prime is 14428753. The reversal of 14428730 is 3782441.

14428730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13920361 + 508369 = 3731^2 + 713^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 14428693 and 14428702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721427 + ... + 721446.

Almost surely, 214428730 is an apocalyptic number.

14428730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14428730 is a deficient number, since it is larger than the sum of its proper divisors (11543002).

14428730 is a wasteful number, since it uses less digits than its factorization.

14428730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442880.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 14428730 is about 3798.5168158111. The cubic root of 14428730 is about 243.4497701754.

The spelling of 14428730 in words is "fourteen million, four hundred twenty-eight thousand, seven hundred thirty".

Divisors: 1 2 5 10 1442873 2885746 7214365 14428730