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14920979 is a prime number
BaseRepresentation
bin111000111010…
…110100010011
31001002001201212
4320322310103
512304432404
61251450335
7240553253
oct70726423
931061655
1014920979
118471397
124bb69ab
1331256a8
141da5963
15149b06e
hexe3ad13

14920979 has 2 divisors, whose sum is σ = 14920980. Its totient is φ = 14920978.

The previous prime is 14920963. The next prime is 14920987. The reversal of 14920979 is 97902941.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (97902941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14920979 - 24 = 14920963 is a prime.

It is a super-2 number, since 2×149209792 = 445271228636882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14920079) 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 as a sum of consecutive naturals, namely, 7460489 + 7460490.

It is an arithmetic number, because the mean of its divisors is an integer number (7460490).

Almost surely, 214920979 is an apocalyptic number.

14920979 is a deficient number, since it is larger than the sum of its proper divisors (1).

14920979 is an equidigital number, since it uses as much as digits as its factorization.

14920979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 14920979 is about 3862.7683078331. The cubic root of 14920979 is about 246.1873723941.

The spelling of 14920979 in words is "fourteen million, nine hundred twenty thousand, nine hundred seventy-nine".