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214839 = 3373109
BaseRepresentation
bin110100011100110111
3101220201000
4310130313
523333324
64334343
71553232
oct643467
9356630
10214839
11137459
12a43b3
1376a31
1458419
15439c9
hex34737

214839 has 16 divisors (see below), whose sum is σ = 325600. Its totient is φ = 139968.

The previous prime is 214831. The next prime is 214849. The reversal of 214839 is 938412.

It is not a de Polignac number, because 214839 - 23 = 214831 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214831) by changing a digit.

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, 1917 + ... + 2025.

It is an arithmetic number, because the mean of its divisors is an integer number (20350).

2214839 is an apocalyptic number.

214839 is a deficient number, since it is larger than the sum of its proper divisors (110761).

214839 is a wasteful number, since it uses less digits than its factorization.

214839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 185 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 214839 is about 463.5072814962. The cubic root of 214839 is about 59.8923068186.

It can be divided in two parts, 2148 and 39, that added together give a 7-th power (2187 = 37).

The spelling of 214839 in words is "two hundred fourteen thousand, eight hundred thirty-nine".

Divisors: 1 3 9 27 73 109 219 327 657 981 1971 2943 7957 23871 71613 214839