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38888093 = 229169817
BaseRepresentation
bin1001010001011…
…0001010011101
32201011201102202
42110112022131
534423404333
63505301245
7651354236
oct224261235
981151382
1038888093
111aa51222
1211034825
13809770a
14524408d
1536325e8
hex251629d

38888093 has 4 divisors (see below), whose sum is σ = 39058140. Its totient is φ = 38718048.

The previous prime is 38888081. The next prime is 38888111. The reversal of 38888093 is 39088883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39088883 = 147126573.

It can be written as a sum of positive squares in 2 ways, for example, as 30946969 + 7941124 = 5563^2 + 2818^2 .

It is a cyclic number.

It is not a de Polignac number, because 38888093 - 26 = 38888029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38888063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84680 + ... + 85137.

It is an arithmetic number, because the mean of its divisors is an integer number (9764535).

Almost surely, 238888093 is an apocalyptic number.

It is an amenable number.

38888093 is a deficient number, since it is larger than the sum of its proper divisors (170047).

38888093 is a wasteful number, since it uses less digits than its factorization.

38888093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170046.

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 38888093 is about 6236.0318312209. The cubic root of 38888093 is about 338.7964743361.

The spelling of 38888093 in words is "thirty-eight million, eight hundred eighty-eight thousand, ninety-three".

Divisors: 1 229 169817 38888093