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1428294 = 237311097
BaseRepresentation
bin101011100101101000110
32200120020210
411130231012
5331201134
650340250
715066060
oct5345506
92616223
101428294
1189610a
1258a686
133b015a
14292730
151d32e9
hex15cb46

1428294 has 32 divisors (see below), whose sum is σ = 3373056. Its totient is φ = 394560.

The previous prime is 1428281. The next prime is 1428359. The reversal of 1428294 is 4928241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754 + ... + 1850.

It is an arithmetic number, because the mean of its divisors is an integer number (105408).

21428294 is an apocalyptic number.

1428294 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1428294, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686528).

1428294 is an abundant number, since it is smaller than the sum of its proper divisors (1944762).

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

1428294 is a wasteful number, since it uses less digits than its factorization.

1428294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

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

The square root of 1428294 is about 1195.1125470013. The cubic root of 1428294 is about 112.6174969944.

The spelling of 1428294 in words is "one million, four hundred twenty-eight thousand, two hundred ninety-four".

Divisors: 1 2 3 6 7 14 21 31 42 62 93 186 217 434 651 1097 1302 2194 3291 6582 7679 15358 23037 34007 46074 68014 102021 204042 238049 476098 714147 1428294