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38330865 = 325851797
BaseRepresentation
bin1001001000111…
…0000111110001
32200010102001200
42102032013301
534303041430
63445321413
7643543536
oct222160761
980112050
1038330865
111a700601
1210a06269
137c30bb1
14513ad8d
153572460
hex248e1f1

38330865 has 12 divisors (see below), whose sum is σ = 66440244. Its totient is φ = 20443104.

The previous prime is 38330863. The next prime is 38330867. The reversal of 38330865 is 56803383.

It is an interprime number because it is at equal distance from previous prime (38330863) and next prime (38330867).

It can be written as a sum of positive squares in 2 ways, for example, as 7160976 + 31169889 = 2676^2 + 5583^2 .

It is not a de Polignac number, because 38330865 - 21 = 38330863 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38330863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 425854 + ... + 425943.

It is an arithmetic number, because the mean of its divisors is an integer number (5536687).

Almost surely, 238330865 is an apocalyptic number.

It is an amenable number.

38330865 is a deficient number, since it is larger than the sum of its proper divisors (28109379).

38330865 is a wasteful number, since it uses less digits than its factorization.

38330865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851808 (or 851805 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 38330865 is about 6191.1925345607. The cubic root of 38330865 is about 337.1704767235.

The spelling of 38330865 in words is "thirty-eight million, three hundred thirty thousand, eight hundred sixty-five".

Divisors: 1 3 5 9 15 45 851797 2555391 4258985 7666173 12776955 38330865