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1428713 = 111397103
BaseRepresentation
bin101011100110011101001
32200120211022
411130303221
5331204323
650342225
715100226
oct5346351
92616738
101428713
11896460
1258a975
133b03c0
1429294d
151d34c8
hex15cce9

1428713 has 16 divisors (see below), whose sum is σ = 1712256. Its totient is φ = 1175040.

The previous prime is 1428709. The next prime is 1428751. The reversal of 1428713 is 3178241.

It is a cyclic number.

It is not a de Polignac number, because 1428713 - 22 = 1428709 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

Its product of digits (1344) is a multiple of the sum of its prime divisors (224).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1428703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13820 + ... + 13922.

It is an arithmetic number, because the mean of its divisors is an integer number (107016).

21428713 is an apocalyptic number.

1428713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1428713 is a deficient number, since it is larger than the sum of its proper divisors (283543).

1428713 is a wasteful number, since it uses less digits than its factorization.

1428713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224.

The product of its digits is 1344, while the sum is 26.

The square root of 1428713 is about 1195.2878314448. The cubic root of 1428713 is about 112.6285082936.

The spelling of 1428713 in words is "one million, four hundred twenty-eight thousand, seven hundred thirteen".

Divisors: 1 11 13 97 103 143 1067 1133 1261 1339 9991 13871 14729 109901 129883 1428713