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220663065 = 3572101553
BaseRepresentation
bin11010010011100…
…00110100011001
3120101012211211010
431021300310121
5422442204230
633521324133
75316414360
oct1511606431
9511184733
10220663065
11103616477
1261a96649
133694047c
14214407d7
151458b9b0
hexd270d19

220663065 has 16 divisors (see below), whose sum is σ = 403498368. Its totient is φ = 100874496.

The previous prime is 220663063. The next prime is 220663067. The reversal of 220663065 is 560366022.

It is an interprime number because it is at equal distance from previous prime (220663063) and next prime (220663067).

It is not a de Polignac number, because 220663065 - 21 = 220663063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220663061) 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 15 ways as a sum of consecutive naturals, for example, 1050672 + ... + 1050881.

It is an arithmetic number, because the mean of its divisors is an integer number (25218648).

Almost surely, 2220663065 is an apocalyptic number.

It is an amenable number.

220663065 is a deficient number, since it is larger than the sum of its proper divisors (182835303).

220663065 is a wasteful number, since it uses less digits than its factorization.

220663065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101568.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 220663065 is about 14854.7320743257. The cubic root of 220663065 is about 604.2869499289.

The spelling of 220663065 in words is "two hundred twenty million, six hundred sixty-three thousand, sixty-five".

Divisors: 1 3 5 7 15 21 35 105 2101553 6304659 10507765 14710871 31523295 44132613 73554355 220663065