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380271 = 3126757
BaseRepresentation
bin1011100110101101111
3201022122010
41130311233
544132041
612052303
73142443
oct1346557
9638563
10380271
1123a781
12164093
13104118
149c823
1577a16
hex5cd6f

380271 has 4 divisors (see below), whose sum is σ = 507032. Its totient is φ = 253512.

The previous prime is 380269. The next prime is 380287. The reversal of 380271 is 172083.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 380271 - 21 = 380269 is a prime.

It is a D-number.

It is a Duffinian number.

380271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380201) 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 3 ways as a sum of consecutive naturals, for example, 63376 + ... + 63381.

It is an arithmetic number, because the mean of its divisors is an integer number (126758).

2380271 is an apocalyptic number.

380271 is a deficient number, since it is larger than the sum of its proper divisors (126761).

380271 is a wasteful number, since it uses less digits than its factorization.

380271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126760.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 380271 is about 616.6611711467. The cubic root of 380271 is about 72.4487787236.

The spelling of 380271 in words is "three hundred eighty thousand, two hundred seventy-one".

Divisors: 1 3 126757 380271