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1428942 = 23238157
BaseRepresentation
bin101011100110111001110
32200121010210
411130313032
5331211232
650343250
715101004
oct5346716
92617123
101428942
11896649
1258ab26
133b0538
14292a74
151d35cc
hex15cdce

1428942 has 8 divisors (see below), whose sum is σ = 2857896. Its totient is φ = 476312.

The previous prime is 1428937. The next prime is 1428949. The reversal of 1428942 is 2498241.

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

1428942 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428949) by changing a digit.

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, 119073 + ... + 119084.

It is an arithmetic number, because the mean of its divisors is an integer number (357237).

21428942 is an apocalyptic number.

1428942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1428942 is a wasteful number, since it uses less digits than its factorization.

1428942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238162.

The product of its digits is 4608, while the sum is 30.

The square root of 1428942 is about 1195.3836204332. The cubic root of 1428942 is about 112.6345254925.

The spelling of 1428942 in words is "one million, four hundred twenty-eight thousand, nine hundred forty-two".

Divisors: 1 2 3 6 238157 476314 714471 1428942