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244494861 = 31331434703
BaseRepresentation
bin11101001001010…
…11001000001101
3122001001121220020
432210223020031
51000042313421
640132212353
76026113002
oct1644531015
9561047806
10244494861
11116013676
1269a6a0b9
133b865a20
14246858a9
15166e7dc6
hexe92b20d

244494861 has 32 divisors (see below), whose sum is σ = 370900992. Its totient is φ = 142188480.

The previous prime is 244494851. The next prime is 244494889. The reversal of 244494861 is 168494442.

It is not a de Polignac number, because 244494861 - 25 = 244494829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244494851) 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 31 ways as a sum of consecutive naturals, for example, 49636 + ... + 54338.

It is an arithmetic number, because the mean of its divisors is an integer number (11590656).

Almost surely, 2244494861 is an apocalyptic number.

It is an amenable number.

244494861 is a deficient number, since it is larger than the sum of its proper divisors (126406131).

244494861 is a wasteful number, since it uses less digits than its factorization.

244494861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793.

The product of its digits is 221184, while the sum is 42.

The square root of 244494861 is about 15636.3314431487. The cubic root of 244494861 is about 625.3021353059.

The spelling of 244494861 in words is "two hundred forty-four million, four hundred ninety-four thousand, eight hundred sixty-one".

Divisors: 1 3 13 31 39 43 93 129 403 559 1209 1333 1677 3999 4703 14109 17329 51987 61139 145793 183417 202229 437379 606687 1895309 2628977 5685927 6269099 7886931 18807297 81498287 244494861