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387049 = 13191567
BaseRepresentation
bin1011110011111101001
3201122221011
41132133221
544341144
612143521
73201265
oct1363751
9648834
10387049
11244883
12167ba1
13107230
14a10a5
1579a34
hex5e7e9

387049 has 8 divisors (see below), whose sum is σ = 439040. Its totient is φ = 338256.

The previous prime is 387047. The next prime is 387071. The reversal of 387049 is 940783.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 387049 - 21 = 387047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 387049.

It is not an unprimeable number, because it can be changed into a prime (387047) 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 7 ways as a sum of consecutive naturals, for example, 537 + ... + 1030.

It is an arithmetic number, because the mean of its divisors is an integer number (54880).

2387049 is an apocalyptic number.

It is an amenable number.

387049 is a deficient number, since it is larger than the sum of its proper divisors (51991).

387049 is a wasteful number, since it uses less digits than its factorization.

387049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 387049 is about 622.1326225171. The cubic root of 387049 is about 72.8766918121.

The spelling of 387049 in words is "three hundred eighty-seven thousand, forty-nine".

Divisors: 1 13 19 247 1567 20371 29773 387049