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38557043 = 75508149
BaseRepresentation
bin1001001100010…
…1010101110011
32200112220022122
42103011111303
534332311133
63454224455
7645505130
oct223052563
980486278
1038557043
111a845528
1210ab512b
137cacb25
145199587
1535b9498
hex24c5573

38557043 has 4 divisors (see below), whose sum is σ = 44065200. Its totient is φ = 33048888.

The previous prime is 38557033. The next prime is 38557049. The reversal of 38557043 is 34075583.

38557043 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: 34075583 = 36792849.

It is a cyclic number.

It is not a de Polignac number, because 38557043 - 28 = 38556787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38556994 and 38557012.

It is not an unprimeable number, because it can be changed into a prime (38557049) 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, 2754068 + ... + 2754081.

It is an arithmetic number, because the mean of its divisors is an integer number (11016300).

Almost surely, 238557043 is an apocalyptic number.

38557043 is a deficient number, since it is larger than the sum of its proper divisors (5508157).

38557043 is an equidigital number, since it uses as much as digits as its factorization.

38557043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5508156.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 38557043 is about 6209.4317775462. The cubic root of 38557043 is about 337.8323544525.

The spelling of 38557043 in words is "thirty-eight million, five hundred fifty-seven thousand, forty-three".

Divisors: 1 7 5508149 38557043