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38275489 = 75467927
BaseRepresentation
bin1001001000000…
…0100110100001
32200000121002201
42102000212201
534244303424
63444213201
7643223230
oct222004641
980017081
1038275489
111a672a3a
121099a201
137c11925
145124b17
153560d44
hex24809a1

38275489 has 4 divisors (see below), whose sum is σ = 43743424. Its totient is φ = 32807556.

The previous prime is 38275477. The next prime is 38275499. The reversal of 38275489 is 98457283.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98457283 = 165759419.

It is a cyclic number.

It is not a de Polignac number, because 38275489 - 27 = 38275361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38275409) 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, 2733957 + ... + 2733970.

It is an arithmetic number, because the mean of its divisors is an integer number (10935856).

Almost surely, 238275489 is an apocalyptic number.

It is an amenable number.

38275489 is a deficient number, since it is larger than the sum of its proper divisors (5467935).

38275489 is an equidigital number, since it uses as much as digits as its factorization.

38275489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467934.

The product of its digits is 483840, while the sum is 46.

The square root of 38275489 is about 6186.7187587606. The cubic root of 38275489 is about 337.0080301691.

It can be divided in two parts, 3827 and 5489, that added together give a triangular number (9316 = T136).

The spelling of 38275489 in words is "thirty-eight million, two hundred seventy-five thousand, four hundred eighty-nine".

Divisors: 1 7 5467927 38275489