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244420193 = 13113713619
BaseRepresentation
bin11101001000110…
…00111001100001
3122000220211110202
432210120321201
51000032421233
640130434545
76025352213
oct1644307141
9560824422
10244420193
11115a72566
1269a32a55
133b83aa44
14246665b3
15166d0be8
hexe918e61

244420193 has 8 divisors (see below), whose sum is σ = 248101920. Its totient is φ = 240766240.

The previous prime is 244420181. The next prime is 244420247. The reversal of 244420193 is 391024442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 244420193 - 24 = 244420177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244420093) by changing a digit.

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, 11138 + ... + 24756.

It is an arithmetic number, because the mean of its divisors is an integer number (31012740).

Almost surely, 2244420193 is an apocalyptic number.

It is an amenable number.

244420193 is a deficient number, since it is larger than the sum of its proper divisors (3681727).

244420193 is a wasteful number, since it uses less digits than its factorization.

244420193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13887.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 244420193 is about 15633.9436163752. The cubic root of 244420193 is about 625.2384736902.

The spelling of 244420193 in words is "two hundred forty-four million, four hundred twenty thousand, one hundred ninety-three".

Divisors: 1 131 137 13619 17947 1784089 1865803 244420193