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14428780 = 225721439
BaseRepresentation
bin110111000010…
…101001101100
31000011001120021
4313002221230
512143210110
61233131524
7233433262
oct67025154
930131507
1014428780
118165613
1249b9ba4
132cb2652
141cb8432
1514002da
hexdc2a6c

14428780 has 12 divisors (see below), whose sum is σ = 30300480. Its totient is φ = 5771504.

The previous prime is 14428763. The next prime is 14428781. The reversal of 14428780 is 8782441.

14428780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (14428781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360700 + ... + 360739.

It is an arithmetic number, because the mean of its divisors is an integer number (2525040).

Almost surely, 214428780 is an apocalyptic number.

14428780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14428780 is an abundant number, since it is smaller than the sum of its proper divisors (15871700).

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

14428780 is a wasteful number, since it uses less digits than its factorization.

14428780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721448 (or 721446 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 14428780 is about 3798.5233973216. The cubic root of 14428780 is about 243.4500513846.

The spelling of 14428780 in words is "fourteen million, four hundred twenty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 721439 1442878 2885756 3607195 7214390 14428780