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14254639 = 72421691
BaseRepresentation
bin110110011000…
…001000101111
3222211012200121
4312120020233
512122122024
61225305411
7232106500
oct66301057
928735617
1014254639
1180567a3
124935267
132c512c9
141c70ba7
1513b88e4
hexd9822f

14254639 has 12 divisors (see below), whose sum is σ = 16645368. Its totient is φ = 12171600.

The previous prime is 14254633. The next prime is 14254661. The reversal of 14254639 is 93645241.

It is a happy number.

14254639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 14254639 - 217 = 14123567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14254633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20284 + ... + 20974.

It is an arithmetic number, because the mean of its divisors is an integer number (1387114).

Almost surely, 214254639 is an apocalyptic number.

14254639 is a deficient number, since it is larger than the sum of its proper divisors (2390729).

14254639 is an equidigital number, since it uses as much as digits as its factorization.

14254639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126 (or 1119 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 14254639 is about 3775.5316181963. The cubic root of 14254639 is about 242.4666847633.

The spelling of 14254639 in words is "fourteen million, two hundred fifty-four thousand, six hundred thirty-nine".

Divisors: 1 7 49 421 691 2947 4837 20629 33859 290911 2036377 14254639