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14320047 = 373121997
BaseRepresentation
bin110110101000…
…000110101111
3222221112102010
4312220012233
512131220142
61230532303
7232501260
oct66500657
928845363
1014320047
1180a0955
124967093
132c75001
141c8a967
1513cce9c
hexda81af

14320047 has 16 divisors (see below), whose sum is σ = 22525952. Its totient is φ = 7918560.

The previous prime is 14319983. The next prime is 14320049. The reversal of 14320047 is 74002341.

It is not a de Polignac number, because 14320047 - 26 = 14319983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14320049) 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 15 ways as a sum of consecutive naturals, for example, 10348 + ... + 11649.

It is an arithmetic number, because the mean of its divisors is an integer number (1407872).

Almost surely, 214320047 is an apocalyptic number.

14320047 is a deficient number, since it is larger than the sum of its proper divisors (8205905).

14320047 is a wasteful number, since it uses less digits than its factorization.

14320047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22038.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 14320047 is about 3784.1837957478. The cubic root of 14320047 is about 242.8369751089.

Adding to 14320047 its reverse (74002341), we get a palindrome (88322388).

The spelling of 14320047 in words is "fourteen million, three hundred twenty thousand, forty-seven".

Divisors: 1 3 7 21 31 93 217 651 21997 65991 153979 461937 681907 2045721 4773349 14320047