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387297 = 32231871
BaseRepresentation
bin1011110100011100001
3201200021100
41132203201
544343142
612145013
73202101
oct1364341
9650240
10387297
11244a89
12168169
13107391
14a1201
1579b4c
hex5e8e1

387297 has 12 divisors (see below), whose sum is σ = 584064. Its totient is φ = 246840.

The previous prime is 387281. The next prime is 387307. The reversal of 387297 is 792783.

It is not a de Polignac number, because 387297 - 24 = 387281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 729 + ... + 1142.

It is an arithmetic number, because the mean of its divisors is an integer number (48672).

2387297 is an apocalyptic number.

It is an amenable number.

387297 is a deficient number, since it is larger than the sum of its proper divisors (196767).

387297 is a wasteful number, since it uses less digits than its factorization.

387297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900 (or 1897 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 387297 is about 622.3319050153. The cubic root of 387297 is about 72.8922536322.

It can be divided in two parts, 3872 and 97, that added together give a square (3969 = 632).

The spelling of 387297 in words is "three hundred eighty-seven thousand, two hundred ninety-seven".

Divisors: 1 3 9 23 69 207 1871 5613 16839 43033 129099 387297