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38882845 = 57776569
BaseRepresentation
bin1001010001010…
…0111000011101
32201011110020101
42110110320131
534423222340
63505221101
7651333031
oct224247035
981143211
1038882845
111aa48291
1211031791
138095201
1452421c1
153630c9a
hex2514e1d

38882845 has 4 divisors (see below), whose sum is σ = 46659420. Its totient is φ = 31106272.

The previous prime is 38882843. The next prime is 38882849. The reversal of 38882845 is 54828883.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54828883 = 247322171.

It can be written as a sum of positive squares in 2 ways, for example, as 20811844 + 18071001 = 4562^2 + 4251^2 .

It is a cyclic number.

It is not a de Polignac number, because 38882845 - 21 = 38882843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38882795 and 38882804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38882843) 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, 3888280 + ... + 3888289.

It is an arithmetic number, because the mean of its divisors is an integer number (11664855).

Almost surely, 238882845 is an apocalyptic number.

It is an amenable number.

38882845 is a deficient number, since it is larger than the sum of its proper divisors (7776575).

38882845 is an equidigital number, since it uses as much as digits as its factorization.

38882845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7776574.

The product of its digits is 491520, while the sum is 46.

The square root of 38882845 is about 6235.6110366186. The cubic root of 38882845 is about 338.7812333052.

The spelling of 38882845 in words is "thirty-eight million, eight hundred eighty-two thousand, eight hundred forty-five".

Divisors: 1 5 7776569 38882845