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380671 = 1512521
BaseRepresentation
bin1011100111011111111
3201100011221
41130323333
544140141
612054211
73143554
oct1347377
9640157
10380671
11240005
12164367
13104365
149ca2b
1577bd1
hex5ceff

380671 has 4 divisors (see below), whose sum is σ = 383344. Its totient is φ = 378000.

The previous prime is 380657. The next prime is 380707. The reversal of 380671 is 176083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176083 = 374759.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-380671 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380621) 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, 1110 + ... + 1411.

It is an arithmetic number, because the mean of its divisors is an integer number (95836).

2380671 is an apocalyptic number.

380671 is a deficient number, since it is larger than the sum of its proper divisors (2673).

380671 is a wasteful number, since it uses less digits than its factorization.

380671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 380671 is about 616.9854131177. The cubic root of 380671 is about 72.4741723301.

The spelling of 380671 in words is "three hundred eighty thousand, six hundred seventy-one".

Divisors: 1 151 2521 380671