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14720519 = 111338229
BaseRepresentation
bin111000001001…
…111000000111
31000200212202102
4320021320013
512232024034
61243302315
7236056652
oct70117007
930625672
1014720519
118344820
124b1a99b
133085388
141d52899
15145b97e
hexe09e07

14720519 has 4 divisors (see below), whose sum is σ = 16058760. Its totient is φ = 13382280.

The previous prime is 14720509. The next prime is 14720527. The reversal of 14720519 is 91502741.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14720519 - 28 = 14720263 is a prime.

It is a super-2 number, since 2×147205192 = 433387359258722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14720491 and 14720500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14720509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669104 + ... + 669125.

It is an arithmetic number, because the mean of its divisors is an integer number (4014690).

Almost surely, 214720519 is an apocalyptic number.

14720519 is a deficient number, since it is larger than the sum of its proper divisors (1338241).

14720519 is a wasteful number, since it uses less digits than its factorization.

14720519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338240.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 14720519 is about 3836.7328549171. The cubic root of 14720519 is about 245.0799072963.

The spelling of 14720519 in words is "fourteen million, seven hundred twenty thousand, five hundred nineteen".

Divisors: 1 11 1338229 14720519