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38430444648785 = 57171910333004079
BaseRepresentation
bin10001011110011110010010…
…00000000111100101010001
312001001220200202121221011212
420233033021000013211101
520014121022312230120
6213422411425545505
711044336146506450
oct1057171100074521
9161056622557155
1038430444648785
1111277295140952
1243880b21a5295
131859c8abab907
1496c087300b97
154699e62e46c5
hex22f3c9007951

38430444648785 has 64 divisors (see below), whose sum is σ = 59312292249600. Its totient is φ = 23268667087872.

The previous prime is 38430444648763. The next prime is 38430444648811. The reversal of 38430444648785 is 58784644403483.

It is not a de Polignac number, because 38430444648785 - 222 = 38430440454481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15337625 + ... + 17666454.

It is an arithmetic number, because the mean of its divisors is an integer number (926754566400).

Almost surely, 238430444648785 is an apocalyptic number.

38430444648785 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38430444648785 is a deficient number, since it is larger than the sum of its proper divisors (20881847600815).

38430444648785 is a wasteful number, since it uses less digits than its factorization.

38430444648785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33004230.

The product of its (nonzero) digits is 990904320, while the sum is 68.

The spelling of 38430444648785 in words is "thirty-eight trillion, four hundred thirty billion, four hundred forty-four million, six hundred forty-eight thousand, seven hundred eighty-five".

Divisors: 1 5 7 17 19 35 85 95 103 119 133 323 515 595 665 721 1615 1751 1957 2261 3605 8755 9785 11305 12257 13699 33269 61285 68495 166345 232883 1164415 33004079 165020395 231028553 561069343 627077501 1155142765 2805346715 3135387505 3399420137 3927485401 4389542507 10660317517 16997100685 19637427005 21947712535 23795940959 53301587585 57790142329 64588982603 74622222619 118979704795 288950711645 322944913015 373111113095 404530996303 452122878221 1098012704251 2022654981515 2260614391105 5490063521255 7686088929757 38430444648785