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930385 = 5732549
BaseRepresentation
bin11100011001001010001
31202021020201
43203021101
5214233020
631535201
710623331
oct3431121
91667221
10930385
11586015
1238a501
13267631
141a30c1
15135a0a
hexe3251

930385 has 8 divisors (see below), whose sum is σ = 1132200. Its totient is φ = 733824.

The previous prime is 930379. The next prime is 930389. The reversal of 930385 is 583039.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 304704 + 625681 = 552^2 + 791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 2-Lehmer number, since φ(930385) divides (930385-1)2.

It is a cyclic number.

It is not a de Polignac number, because 930385 - 211 = 928337 is a prime.

930385 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (930389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (141525).

2930385 is an apocalyptic number.

It is an amenable number.

930385 is a deficient number, since it is larger than the sum of its proper divisors (201815).

930385 is a wasteful number, since it uses less digits than its factorization.

930385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 930385 is about 964.5646686459. The cubic root of 930385 is about 97.6234683890.

The spelling of 930385 in words is "nine hundred thirty thousand, three hundred eighty-five".

Divisors: 1 5 73 365 2549 12745 186077 930385