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14220479 = 713156269
BaseRepresentation
bin110110001111…
…110010111111
3222202110211102
4312033302333
512120023404
61224443315
7231605060
oct66176277
928673742
1014220479
118033069
12491953b
132c3b8b0
141c62567
1513ad71e
hexd8fcbf

14220479 has 8 divisors (see below), whose sum is σ = 17502240. Its totient is φ = 11251296.

The previous prime is 14220439. The next prime is 14220533. The reversal of 14220479 is 97402241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14220479 - 220 = 13171903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14220419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78044 + ... + 78225.

It is an arithmetic number, because the mean of its divisors is an integer number (2187780).

Almost surely, 214220479 is an apocalyptic number.

14220479 is a deficient number, since it is larger than the sum of its proper divisors (3281761).

14220479 is a wasteful number, since it uses less digits than its factorization.

14220479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156289.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 14220479 is about 3771.0050384480. The cubic root of 14220479 is about 242.2728464159.

The spelling of 14220479 in words is "fourteen million, two hundred twenty thousand, four hundred seventy-nine".

Divisors: 1 7 13 91 156269 1093883 2031497 14220479