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244203130 = 25176123549
BaseRepresentation
bin11101000111000…
…11111001111010
3122000111210201101
432203203321322
51000004000010
640122042014
76023456323
oct1643437172
9560453641
10244203130
11115934476
126994930a
133b792cc2
142460b44a
151668b73a
hexe8e3e7a

244203130 has 32 divisors (see below), whose sum is σ = 473072400. Its totient is φ = 90424320.

The previous prime is 244203119. The next prime is 244203137. The reversal of 244203130 is 31302442.

It is a Cunningham number, because it is equal to 156272+1.

It can be written as a sum of positive squares in 8 ways, for example, as 7935489 + 236267641 = 2817^2 + 15371^2 .

It is a junction number, because it is equal to n+sod(n) for n = 244203098 and 244203107.

It is not an unprimeable number, because it can be changed into a prime (244203137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1405 + ... + 22144.

Almost surely, 2244203130 is an apocalyptic number.

244203130 is a deficient number, since it is larger than the sum of its proper divisors (228869270).

244203130 is a wasteful number, since it uses less digits than its factorization.

244203130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23634.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 244203130 is about 15627.0000319959. Note that the first 4 decimals coincide. The cubic root of 244203130 is about 625.0533330488.

Adding to 244203130 its reverse (31302442), we get a palindrome (275505572).

The spelling of 244203130 in words is "two hundred forty-four million, two hundred three thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 61 85 122 170 305 610 1037 2074 5185 10370 23549 47098 117745 235490 400333 800666 1436489 2001665 2872978 4003330 7182445 14364890 24420313 48840626 122101565 244203130