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14345247 = 3719157229
BaseRepresentation
bin110110101110…
…010000011111
3222222210222110
4312232100133
512133021442
61231245103
7232634610
oct66562037
928883873
1014345247
118108884
124979793
132c83617
141c95c07
1513d569c
hexdae41f

14345247 has 32 divisors (see below), whose sum is σ = 23257600. Its totient is φ = 7682688.

The previous prime is 14345213. The next prime is 14345249. The reversal of 14345247 is 74254341.

It is not a de Polignac number, because 14345247 - 26 = 14345183 is a prime.

It is a super-2 number, since 2×143452472 = 411572222982018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14345249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62529 + ... + 62757.

It is an arithmetic number, because the mean of its divisors is an integer number (726800).

Almost surely, 214345247 is an apocalyptic number.

14345247 is a deficient number, since it is larger than the sum of its proper divisors (8912353).

14345247 is a wasteful number, since it uses less digits than its factorization.

14345247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its digits is 13440, while the sum is 30.

The square root of 14345247 is about 3787.5119801791. The cubic root of 14345247 is about 242.9793374360.

Adding to 14345247 its reverse (74254341), we get a palindrome (88599588).

The spelling of 14345247 in words is "fourteen million, three hundred forty-five thousand, two hundred forty-seven".

Divisors: 1 3 7 19 21 57 133 157 229 399 471 687 1099 1603 2983 3297 4351 4809 8949 13053 20881 30457 35953 62643 91371 107859 251671 683107 755013 2049321 4781749 14345247