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220240250 = 253880961
BaseRepresentation
bin11010010000010…
…01100101111010
3120100102100211022
431020021211322
5422340142000
633504302442
75313003566
oct1510114572
9510370738
10220240250
1110335783a
1261911a22
1336822b99
14213706a6
1514506585
hexd20997a

220240250 has 16 divisors (see below), whose sum is σ = 412290216. Its totient is φ = 88096000.

The previous prime is 220240247. The next prime is 220240301. The reversal of 220240250 is 52042022.

It can be written as a sum of positive squares in 4 ways, for example, as 58721569 + 161518681 = 7663^2 + 12709^2 .

It is an unprimeable number.

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, 440231 + ... + 440730.

Almost surely, 2220240250 is an apocalyptic number.

220240250 is a deficient number, since it is larger than the sum of its proper divisors (192049966).

220240250 is an equidigital number, since it uses as much as digits as its factorization.

220240250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880978 (or 880968 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 220240250 is about 14840.4935901741. The cubic root of 220240250 is about 603.9007427938.

Adding to 220240250 its reverse (52042022), we get a palindrome (272282272).

The spelling of 220240250 in words is "two hundred twenty million, two hundred forty thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 880961 1761922 4404805 8809610 22024025 44048050 110120125 220240250