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220809713 = 475388643
BaseRepresentation
bin11010010100101…
…00100111110001
3120101111021222112
431022110213301
5423011402323
633524415105
75320565045
oct1512244761
9511437875
10220809713
11103706673
1261b47495
1336992147
142147c025
15145ba178
hexd2949f1

220809713 has 8 divisors (see below), whose sum is σ = 229765248. Its totient is φ = 212031664.

The previous prime is 220809709. The next prime is 220809727. The reversal of 220809713 is 317908022.

220809713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 220809713 - 22 = 220809709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220809713.

It is not an unprimeable number, because it can be changed into a prime (220802713) 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, 41831 + ... + 46812.

It is an arithmetic number, because the mean of its divisors is an integer number (28720656).

Almost surely, 2220809713 is an apocalyptic number.

It is an amenable number.

220809713 is a deficient number, since it is larger than the sum of its proper divisors (8955535).

220809713 is an equidigital number, since it uses as much as digits as its factorization.

220809713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88743.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 220809713 is about 14859.6673246745. The cubic root of 220809713 is about 604.4207857218.

The spelling of 220809713 in words is "two hundred twenty million, eight hundred nine thousand, seven hundred thirteen".

Divisors: 1 47 53 2491 88643 4166221 4698079 220809713