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386481 = 3472741
BaseRepresentation
bin1011110010110110001
3201122011010
41132112301
544331411
612141133
73166524
oct1362661
9648133
10386481
11244407
121677a9
13106bb4
14a0bbb
15797a6
hex5e5b1

386481 has 8 divisors (see below), whose sum is σ = 526464. Its totient is φ = 252080.

The previous prime is 386471. The next prime is 386489. The reversal of 386481 is 184683.

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 386481 - 213 = 378289 is a prime.

It is a super-2 number, since 2×3864812 = 298735126722, which contains 22 as substring.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 386481.

It is not an unprimeable number, because it can be changed into a prime (386489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230 + ... + 1511.

It is an arithmetic number, because the mean of its divisors is an integer number (65808).

2386481 is an apocalyptic number.

It is an amenable number.

386481 is a deficient number, since it is larger than the sum of its proper divisors (139983).

386481 is a wasteful number, since it uses less digits than its factorization.

386481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791.

The product of its digits is 4608, while the sum is 30.

The square root of 386481 is about 621.6759606097. The cubic root of 386481 is about 72.8410251599.

The spelling of 386481 in words is "three hundred eighty-six thousand, four hundred eighty-one".

Divisors: 1 3 47 141 2741 8223 128827 386481