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14917217 = 72304433
BaseRepresentation
bin111000111001…
…111001100001
31001001212120112
4320321321201
512304322332
61251421105
7240536300
oct70717141
931055515
1014917217
118469587
124bb4795
133123a73
141da4437
151499db2
hexe39e61

14917217 has 6 divisors (see below), whose sum is σ = 17352738. Its totient is φ = 12786144.

The previous prime is 14917193. The next prime is 14917241. The reversal of 14917217 is 71271941.

It is an interprime number because it is at equal distance from previous prime (14917193) and next prime (14917241).

It can be written as a sum of positive squares in only one way, i.e., 8317456 + 6599761 = 2884^2 + 2569^2 .

It is not a de Polignac number, because 14917217 - 210 = 14916193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14917247) 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 5 ways as a sum of consecutive naturals, for example, 152168 + ... + 152265.

It is an arithmetic number, because the mean of its divisors is an integer number (2892123).

Almost surely, 214917217 is an apocalyptic number.

It is an amenable number.

14917217 is a deficient number, since it is larger than the sum of its proper divisors (2435521).

14917217 is an equidigital number, since it uses as much as digits as its factorization.

14917217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304447 (or 304440 counting only the distinct ones).

The product of its digits is 3528, while the sum is 32.

The square root of 14917217 is about 3862.2813206705. The cubic root of 14917217 is about 246.1666803930.

The spelling of 14917217 in words is "fourteen million, nine hundred seventeen thousand, two hundred seventeen".

Divisors: 1 7 49 304433 2131031 14917217