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1428083 = 7918077
BaseRepresentation
bin101011100101001110011
32200112221222
411130221303
5331144313
650335255
715065336
oct5345163
92615858
101428083
11895a38
1258a52b
133b0027
1429261d
151d3208
hex15ca73

1428083 has 4 divisors (see below), whose sum is σ = 1446240. Its totient is φ = 1409928.

The previous prime is 1428079. The next prime is 1428109. The reversal of 1428083 is 3808241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1428083 - 22 = 1428079 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428013) 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, 8960 + ... + 9117.

It is an arithmetic number, because the mean of its divisors is an integer number (361560).

21428083 is an apocalyptic number.

1428083 is a deficient number, since it is larger than the sum of its proper divisors (18157).

1428083 is an equidigital number, since it uses as much as digits as its factorization.

1428083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18156.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1428083 is about 1195.0242675360. The cubic root of 1428083 is about 112.6119511096.

The spelling of 1428083 in words is "one million, four hundred twenty-eight thousand, eighty-three".

Divisors: 1 79 18077 1428083