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38943958 = 219253939
BaseRepresentation
bin1001010010001…
…1110011010110
32201021120001211
42110203303112
534432201313
63510412034
7652006144
oct224436326
981246054
1038943958
111aa8a199
121106101a
1380b6c81
14525a594
153643e3d
hex2523cd6

38943958 has 12 divisors (see below), whose sum is σ = 61653420. Its totient is φ = 18446796.

The previous prime is 38943941. The next prime is 38943959. The reversal of 38943958 is 85934983.

38943958 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38943959) 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 5 ways as a sum of consecutive naturals, for example, 26248 + ... + 27691.

It is an arithmetic number, because the mean of its divisors is an integer number (5137785).

Almost surely, 238943958 is an apocalyptic number.

38943958 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

38943958 is a deficient number, since it is larger than the sum of its proper divisors (22709462).

38943958 is a wasteful number, since it uses less digits than its factorization.

38943958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53979 (or 53960 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The square root of 38943958 is about 6240.5094343331. The cubic root of 38943958 is about 338.9586303041.

Subtracting 38943958 from its reverse (85934983), we obtain a square (46991025 = 68552).

The spelling of 38943958 in words is "thirty-eight million, nine hundred forty-three thousand, nine hundred fifty-eight".

Divisors: 1 2 19 38 361 722 53939 107878 1024841 2049682 19471979 38943958