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38984385 = 3511247457
BaseRepresentation
bin1001010010110…
…1101011000001
32201100121112010
42110231223001
534440000020
63511323133
7652235046
oct224555301
981317463
1038984385
1120007600
12110804a9
1380cc4ab
14526b1cd
153650de0
hex252dac1

38984385 has 48 divisors (see below), whose sum is σ = 70172928. Its totient is φ = 18458880.

The previous prime is 38984377. The next prime is 38984459. The reversal of 38984385 is 58348983.

It is not a de Polignac number, because 38984385 - 23 = 38984377 is a prime.

It is a super-3 number, since 3×389843853 (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85077 + ... + 85533.

It is an arithmetic number, because the mean of its divisors is an integer number (1461936).

Almost surely, 238984385 is an apocalyptic number.

It is an amenable number.

38984385 is a deficient number, since it is larger than the sum of its proper divisors (31188543).

38984385 is a wasteful number, since it uses less digits than its factorization.

38984385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 523 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 38984385 is about 6243.7476726722. The cubic root of 38984385 is about 339.0758786300.

The spelling of 38984385 in words is "thirty-eight million, nine hundred eighty-four thousand, three hundred eighty-five".

Divisors: 1 3 5 11 15 33 47 55 121 141 165 235 363 457 517 605 705 1371 1551 1815 2285 2585 5027 5687 6855 7755 15081 17061 21479 25135 28435 55297 64437 75405 85305 107395 165891 236269 276485 322185 708807 829455 1181345 2598959 3544035 7796877 12994795 38984385