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220166513 = 799731547
BaseRepresentation
bin11010001111101…
…11100101110001
3120100021121200022
431013313211301
5422330312023
633502533225
75312245610
oct1507674561
9510247608
10220166513
111033073a6
1261897215
13367c8458
1421351877
15144de7c8
hexd1f7971

220166513 has 8 divisors (see below), whose sum is σ = 251879232. Its totient is φ = 188518896.

The previous prime is 220166501. The next prime is 220166519. The reversal of 220166513 is 315661022.

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

It is a cyclic number.

It is not a de Polignac number, because 220166513 - 28 = 220166257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220166519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8795 + ... + 22752.

It is an arithmetic number, because the mean of its divisors is an integer number (31484904).

Almost surely, 2220166513 is an apocalyptic number.

It is an amenable number.

220166513 is a deficient number, since it is larger than the sum of its proper divisors (31712719).

220166513 is an equidigital number, since it uses as much as digits as its factorization.

220166513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32551.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 220166513 is about 14838.0090645612. The cubic root of 220166513 is about 603.8333394323.

The spelling of 220166513 in words is "two hundred twenty million, one hundred sixty-six thousand, five hundred thirteen".

Divisors: 1 7 997 6979 31547 220829 31452359 220166513