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243100244 = 22128947149
BaseRepresentation
bin11100111110101…
…10101001010100
3121221102202211202
432133112221110
5444213201434
640042252032
76011214032
oct1637265124
9557382752
10243100244
111152508a2
12694b7018
133b497cca
1424401552
151651ea7e
hexe7d6a54

243100244 has 12 divisors (see below), whose sum is σ = 425764500. Its totient is φ = 121453248.

The previous prime is 243100229. The next prime is 243100259. The reversal of 243100244 is 442001342.

It is an interprime number because it is at equal distance from previous prime (243100229) and next prime (243100259).

It can be written as a sum of positive squares in 2 ways, for example, as 73788100 + 169312144 = 8590^2 + 13012^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18419 + ... + 28730.

It is an arithmetic number, because the mean of its divisors is an integer number (35480375).

Almost surely, 2243100244 is an apocalyptic number.

It is an amenable number.

243100244 is a deficient number, since it is larger than the sum of its proper divisors (182664256).

243100244 is a wasteful number, since it uses less digits than its factorization.

243100244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48442 (or 48440 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 243100244 is about 15591.6722643852. The cubic root of 243100244 is about 624.1109441405.

Adding to 243100244 its reverse (442001342), we get a palindrome (685101586).

The spelling of 243100244 in words is "two hundred forty-three million, one hundred thousand, two hundred forty-four".

Divisors: 1 2 4 1289 2578 5156 47149 94298 188596 60775061 121550122 243100244