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38506873 = 106136293
BaseRepresentation
bin1001001011100…
…1000101111001
32200110100111111
42102321011321
534324204443
63453200321
7645205636
oct222710571
980410444
1038506873
111a810869
1210a900a1
137c93042
14518518d
1535a969d
hex24b9179

38506873 has 4 divisors (see below), whose sum is σ = 38544228. Its totient is φ = 38469520.

The previous prime is 38506861. The next prime is 38506877. The reversal of 38506873 is 37860583.

38506873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37860583 = 371023259.

It can be written as a sum of positive squares in 2 ways, for example, as 9809424 + 28697449 = 3132^2 + 5357^2 .

It is a cyclic number.

It is not a de Polignac number, because 38506873 - 25 = 38506841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38506877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17086 + ... + 19207.

It is an arithmetic number, because the mean of its divisors is an integer number (9636057).

Almost surely, 238506873 is an apocalyptic number.

It is an amenable number.

38506873 is a deficient number, since it is larger than the sum of its proper divisors (37355).

38506873 is a wasteful number, since it uses less digits than its factorization.

38506873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37354.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 38506873 is about 6205.3906404029. The cubic root of 38506873 is about 337.6857629392.

The spelling of 38506873 in words is "thirty-eight million, five hundred six thousand, eight hundred seventy-three".

Divisors: 1 1061 36293 38506873