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11720317 = 72372797
BaseRepresentation
bin101100101101…
…011001111101
3211001110020211
4230231121331
511000022232
61055112421
7201423010
oct54553175
924043224
1011720317
116685714
123b12711
1325748cb
1417b1377
151067a47
hexb2d67d

11720317 has 8 divisors (see below), whose sum is σ = 13977216. Its totient is φ = 9609072.

The previous prime is 11720297. The next prime is 11720323. The reversal of 11720317 is 71302711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11720317 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 (11720117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36238 + ... + 36559.

It is an arithmetic number, because the mean of its divisors is an integer number (1747152).

Almost surely, 211720317 is an apocalyptic number.

It is an amenable number.

11720317 is a deficient number, since it is larger than the sum of its proper divisors (2256899).

11720317 is an equidigital number, since it uses as much as digits as its factorization.

11720317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72827.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 11720317 is about 3423.4948517560. The cubic root of 11720317 is about 227.1501978411.

The spelling of 11720317 in words is "eleven million, seven hundred twenty thousand, three hundred seventeen".

Divisors: 1 7 23 161 72797 509579 1674331 11720317