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38387412 = 2233750777
BaseRepresentation
bin1001001001101…
…1111011010100
32200020021122000
42102123323110
534311344122
63450435300
7644200440
oct222337324
980207560
1038387412
111a73a038
1210a32b30
137c5085b
145153820
1535840ac
hex249bed4

38387412 has 48 divisors (see below), whose sum is σ = 113742720. Its totient is φ = 10967616.

The previous prime is 38387407. The next prime is 38387413. The reversal of 38387412 is 21478383.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 (38387413) 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, 24633 + ... + 26144.

It is an arithmetic number, because the mean of its divisors is an integer number (2369640).

Almost surely, 238387412 is an apocalyptic number.

It is an amenable number.

38387412 is an abundant number, since it is smaller than the sum of its proper divisors (75355308).

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

38387412 is a wasteful number, since it uses less digits than its factorization.

38387412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50797 (or 50789 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 38387412 is about 6195.7575807967. The cubic root of 38387412 is about 337.3361970556.

The spelling of 38387412 in words is "thirty-eight million, three hundred eighty-seven thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 50777 101554 152331 203108 304662 355439 456993 609324 710878 913986 1066317 1370979 1421756 1827972 2132634 2741958 3198951 4265268 5483916 6397902 9596853 12795804 19193706 38387412