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38307412 = 221113193347
BaseRepresentation
bin1001001000100…
…0011001010100
32200002012220001
42102020121110
534301314122
63445021044
7643415263
oct222103124
980065801
1038307412
111a694a20
12109b4784
137c23310
1451325da
15356a527
hex2488654

38307412 has 48 divisors (see below), whose sum is σ = 79394112. Its totient is φ = 15943680.

The previous prime is 38307403. The next prime is 38307419. The reversal of 38307412 is 21470383.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38307419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110223 + ... + 110569.

It is an arithmetic number, because the mean of its divisors is an integer number (1654044).

Almost surely, 238307412 is an apocalyptic number.

It is an amenable number.

38307412 is an abundant number, since it is smaller than the sum of its proper divisors (41086700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38307412 is a wasteful number, since it uses less digits than its factorization.

38307412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 566 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 38307412 is about 6189.2981831545. The cubic root of 38307412 is about 337.1016960118.

Adding to 38307412 its reverse (21470383), we get a palindrome (59777795).

The spelling of 38307412 in words is "thirty-eight million, three hundred seven thousand, four hundred twelve".

Divisors: 1 2 4 11 13 22 26 44 52 143 193 286 347 386 572 694 772 1388 2123 2509 3817 4246 4511 5018 7634 8492 9022 10036 15268 18044 27599 49621 55198 66971 99242 110396 133942 198484 267884 736681 870623 1473362 1741246 2946724 3482492 9576853 19153706 38307412