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1683423 = 3472969
BaseRepresentation
bin110011010111111011111
310011112020000
412122333133
5412332143
6100025343
720210640
oct6327737
93145200
101683423
11a4a865
12692253
1346c311
1431b6c7
15233bd3
hex19afdf

1683423 has 20 divisors (see below), whose sum is σ = 2874960. Its totient is φ = 961632.

The previous prime is 1683403. The next prime is 1683433. The reversal of 1683423 is 3243861.

It is a happy number.

It is not a de Polignac number, because 1683423 - 26 = 1683359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 1 + 68 + 83 + 34 + 45 + 2 + 37 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683403) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 918 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (143748).

21683423 is an apocalyptic number.

1683423 is a deficient number, since it is larger than the sum of its proper divisors (1191537).

1683423 is an equidigital number, since it uses as much as digits as its factorization.

1683423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988 (or 2979 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1683423 is about 1297.4679186785. The cubic root of 1683423 is about 118.9591225557.

The spelling of 1683423 in words is "one million, six hundred eighty-three thousand, four hundred twenty-three".

Divisors: 1 3 7 9 21 27 63 81 189 567 2969 8907 20783 26721 62349 80163 187047 240489 561141 1683423