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38044809 = 351143331
BaseRepresentation
bin1001000100100…
…0010010001001
32122120212200000
42101020102021
534214413214
63435233213
7641242545
oct221102211
978525600
1038044809
111a5256a0
12108a8809
137b6092a
1450a4a25
153517809
hex2448489

38044809 has 48 divisors (see below), whose sum is σ = 63807744. Its totient is φ = 22453200.

The previous prime is 38044807. The next prime is 38044817. The reversal of 38044809 is 90844083.

38044809 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 38044809 - 21 = 38044807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38044807) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114774 + ... + 115104.

It is an arithmetic number, because the mean of its divisors is an integer number (1329328).

Almost surely, 238044809 is an apocalyptic number.

It is an amenable number.

38044809 is a deficient number, since it is larger than the sum of its proper divisors (25762935).

38044809 is a wasteful number, since it uses less digits than its factorization.

38044809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 38044809 is about 6168.0474219967. The cubic root of 38044809 is about 336.3296350495.

The spelling of 38044809 in words is "thirty-eight million, forty-four thousand, eight hundred nine".

Divisors: 1 3 9 11 27 33 43 81 99 129 243 297 331 387 473 891 993 1161 1419 2673 2979 3483 3641 4257 8937 10449 10923 12771 14233 26811 32769 38313 42699 80433 98307 114939 128097 156563 294921 384291 469689 884763 1152873 1409067 3458619 4227201 12681603 38044809