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440103220 = 22589247249
BaseRepresentation
bin11010001110110…
…111000100110100
31010200010120010021
4122032313010310
51400131300340
6111400534524
713622546524
oct3216670464
91120116107
10440103220
11206477077
12103481444
137024310b
1442643684
1528985e4a
hex1a3b7134

440103220 has 24 divisors (see below), whose sum is σ = 934605000. Its totient is φ = 174062592.

The previous prime is 440103199. The next prime is 440103221. The reversal of 440103220 is 22301044.

It can be written as a sum of positive squares in 4 ways, for example, as 19607184 + 420496036 = 4428^2 + 20506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 440103194 and 440103203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440103221) 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, 121845 + ... + 125404.

It is an arithmetic number, because the mean of its divisors is an integer number (38941875).

Almost surely, 2440103220 is an apocalyptic number.

It is an amenable number.

440103220 is an abundant number, since it is smaller than the sum of its proper divisors (494501780).

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

440103220 is a wasteful number, since it uses less digits than its factorization.

440103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247347 (or 247345 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 440103220 is about 20978.6372293340. The cubic root of 440103220 is about 760.6499633737.

Adding to 440103220 its reverse (22301044), we get a palindrome (462404264).

The spelling of 440103220 in words is "four hundred forty million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 89 178 356 445 890 1780 247249 494498 988996 1236245 2472490 4944980 22005161 44010322 88020644 110025805 220051610 440103220