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14920219 = 48730637
BaseRepresentation
bin111000111010…
…101000011011
31001002000200201
4320322220123
512304421334
61251443031
7240551116
oct70725033
931060621
1014920219
118470866
124bb6477
133125242
141da557d
15149ac14
hexe3aa1b

14920219 has 4 divisors (see below), whose sum is σ = 14951344. Its totient is φ = 14889096.

The previous prime is 14920211. The next prime is 14920223. The reversal of 14920219 is 91202941.

It is a happy number.

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 14920219 - 23 = 14920211 is a prime.

It is a super-2 number, since 2×149202192 = 445225870015922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14920211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14832 + ... + 15805.

It is an arithmetic number, because the mean of its divisors is an integer number (3737836).

Almost surely, 214920219 is an apocalyptic number.

14920219 is a deficient number, since it is larger than the sum of its proper divisors (31125).

14920219 is an equidigital number, since it uses as much as digits as its factorization.

14920219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31124.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 14920219 is about 3862.6699315370. The cubic root of 14920219 is about 246.1831924723.

The spelling of 14920219 in words is "fourteen million, nine hundred twenty thousand, two hundred nineteen".

Divisors: 1 487 30637 14920219