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244432405 = 5710765269
BaseRepresentation
bin11101001000110…
…11111000010101
3122000221110020001
432210123320111
51000033314110
640131011301
76025432630
oct1644337025
9560843201
10244432405
11115a80758
1269a39b31
133b843479
142466ac17
15166d463a
hexe91be15

244432405 has 16 divisors (see below), whose sum is σ = 338359680. Its totient is φ = 166041792.

The previous prime is 244432403. The next prime is 244432411. The reversal of 244432405 is 504234442.

It is not a de Polignac number, because 244432405 - 21 = 244432403 is a prime.

It is a super-2 number, since 2×2444324052 = 119494401228168050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244432403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28890 + ... + 36379.

It is an arithmetic number, because the mean of its divisors is an integer number (21147480).

Almost surely, 2244432405 is an apocalyptic number.

It is an amenable number.

244432405 is a deficient number, since it is larger than the sum of its proper divisors (93927275).

244432405 is a wasteful number, since it uses less digits than its factorization.

244432405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65388.

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 244432405 is about 15634.3341719435. The cubic root of 244432405 is about 625.2488864757.

Adding to 244432405 its reverse (504234442), we get a palindrome (748666847).

The spelling of 244432405 in words is "two hundred forty-four million, four hundred thirty-two thousand, four hundred five".

Divisors: 1 5 7 35 107 535 749 3745 65269 326345 456883 2284415 6983783 34918915 48886481 244432405