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220487045 = 546794427
BaseRepresentation
bin11010010010001…
…01110110000101
3120100212220100212
431021011312011
5422421041140
633513445205
75315052242
oct1511056605
9510786325
10220487045
111035061a9
1261a10805
13368ab30c
14213d65c9
1514554765
hexd245d85

220487045 has 8 divisors (see below), whose sum is σ = 265153824. Its totient is φ = 176010064.

The previous prime is 220487041. The next prime is 220487063. The reversal of 220487045 is 540784022.

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 220487045 - 22 = 220487041 is a prime.

It is a super-2 number, since 2×2204870452 = 97229074025664050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220487041) 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 7 ways as a sum of consecutive naturals, for example, 44879 + ... + 49548.

It is an arithmetic number, because the mean of its divisors is an integer number (33144228).

Almost surely, 2220487045 is an apocalyptic number.

It is an amenable number.

220487045 is a deficient number, since it is larger than the sum of its proper divisors (44666779).

220487045 is an equidigital number, since it uses as much as digits as its factorization.

220487045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94899.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 220487045 is about 14848.8061809696. The cubic root of 220487045 is about 604.1262299585.

The spelling of 220487045 in words is "two hundred twenty million, four hundred eighty-seven thousand, forty-five".

Divisors: 1 5 467 2335 94427 472135 44097409 220487045