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220770246 = 2343384977
BaseRepresentation
bin11010010100010…
…10111111000110
3120101102021211210
431022022333012
5423004121441
633523512250
75320342014
oct1512127706
9511367753
10220770246
11103689a54
1261b28686
133697a1a8
142146b8b4
15145ad616
hexd28afc6

220770246 has 16 divisors (see below), whose sum is σ = 442565424. Its totient is φ = 73419264.

The previous prime is 220770241. The next prime is 220770257. The reversal of 220770246 is 642077022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220770241) 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, 39891 + ... + 45086.

It is an arithmetic number, because the mean of its divisors is an integer number (27660339).

Almost surely, 2220770246 is an apocalyptic number.

220770246 is an abundant number, since it is smaller than the sum of its proper divisors (221795178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220770246 is a wasteful number, since it uses less digits than its factorization.

220770246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85415.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 220770246 is about 14858.3392746296. The cubic root of 220770246 is about 604.3847726675.

The spelling of 220770246 in words is "two hundred twenty million, seven hundred seventy thousand, two hundred forty-six".

Divisors: 1 2 3 6 433 866 1299 2598 84977 169954 254931 509862 36795041 73590082 110385123 220770246