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378887 = 1073541
BaseRepresentation
bin1011100100000000111
3201020201212
41130200013
544111022
612042035
73135425
oct1344007
9636655
10378887
11239733
1216331b
131035c2
149c115
15773e2
hex5c807

378887 has 4 divisors (see below), whose sum is σ = 382536. Its totient is φ = 375240.

The previous prime is 378883. The next prime is 378893. The reversal of 378887 is 788873.

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

It is a cyclic number.

It is not a de Polignac number, because 378887 - 22 = 378883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378883) 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, 1664 + ... + 1877.

It is an arithmetic number, because the mean of its divisors is an integer number (95634).

2378887 is an apocalyptic number.

378887 is a deficient number, since it is larger than the sum of its proper divisors (3649).

378887 is a wasteful number, since it uses less digits than its factorization.

378887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648.

The product of its digits is 75264, while the sum is 41.

The square root of 378887 is about 615.5379760827. The cubic root of 378887 is about 72.3607792006.

The spelling of 378887 in words is "three hundred seventy-eight thousand, eight hundred eighty-seven".

Divisors: 1 107 3541 378887