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38868904 = 23431031097
BaseRepresentation
bin1001010001000…
…1011110101000
32201010202010001
42110101132220
534422301104
63505032344
7651244264
oct224213650
981122101
1038868904
111aa38868
12110256b4
13808ba69
14523b0a4
15362baa4
hex25117a8

38868904 has 32 divisors (see below), whose sum is σ = 75366720. Its totient is φ = 18781056.

The previous prime is 38868901. The next prime is 38868913. The reversal of 38868904 is 40986883.

It is a super-2 number, since 2×388689042 = 3021583396322432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38868901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34884 + ... + 35980.

It is an arithmetic number, because the mean of its divisors is an integer number (2355210).

Almost surely, 238868904 is an apocalyptic number.

It is an amenable number.

38868904 is a deficient number, since it is larger than the sum of its proper divisors (36497816).

38868904 is a wasteful number, since it uses less digits than its factorization.

38868904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1245 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 38868904 is about 6234.4930828416. The cubic root of 38868904 is about 338.7407397513.

The spelling of 38868904 in words is "thirty-eight million, eight hundred sixty-eight thousand, nine hundred four".

Divisors: 1 2 4 8 43 86 103 172 206 344 412 824 1097 2194 4388 4429 8776 8858 17716 35432 47171 94342 112991 188684 225982 377368 451964 903928 4858613 9717226 19434452 38868904