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14147479 = 19373303
BaseRepresentation
bin110101111101…
…111110010111
3222121202200201
4311331332113
512110204404
61223121331
7231152203
oct65757627
928552621
1014147479
117a93235
1248a3247
132c145b8
141c43b03
151396ca4
hexd7df97

14147479 has 4 divisors (see below), whose sum is σ = 14220976. Its totient is φ = 14073984.

The previous prime is 14147477. The next prime is 14147491. The reversal of 14147479 is 97474141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97474141 = 175733773.

It is a cyclic number.

It is not a de Polignac number, because 14147479 - 21 = 14147477 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 (14147477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36459 + ... + 36844.

It is an arithmetic number, because the mean of its divisors is an integer number (3555244).

Almost surely, 214147479 is an apocalyptic number.

14147479 is a deficient number, since it is larger than the sum of its proper divisors (73497).

14147479 is an equidigital number, since it uses as much as digits as its factorization.

14147479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73496.

The product of its digits is 28224, while the sum is 37.

The square root of 14147479 is about 3761.3134673941. The cubic root of 14147479 is about 241.8575704934.

The spelling of 14147479 in words is "fourteen million, one hundred forty-seven thousand, four hundred seventy-nine".

Divisors: 1 193 73303 14147479