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830481 = 3276827
BaseRepresentation
bin11001010110000010001
31120012012120
43022300101
5203033411
625444453
710026141
oct3126021
91505176
10830481
11517a53
12340729
13231012
14178921
15116106
hexcac11

830481 has 4 divisors (see below), whose sum is σ = 1107312. Its totient is φ = 553652.

The previous prime is 830477. The next prime is 830483. The reversal of 830481 is 184038.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 830481 - 22 = 830477 is a prime.

It is a super-2 number, since 2×8304812 = 1379397382722, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 830481.

It is not an unprimeable number, because it can be changed into a prime (830483) 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, 138411 + ... + 138416.

It is an arithmetic number, because the mean of its divisors is an integer number (276828).

2830481 is an apocalyptic number.

It is an amenable number.

830481 is a deficient number, since it is larger than the sum of its proper divisors (276831).

830481 is a wasteful number, since it uses less digits than its factorization.

830481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276830.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 830481 is about 911.3073027250. The cubic root of 830481 is about 93.9961142199.

It can be divided in two parts, 8304 and 81, that added together give a triangular number (8385 = T129).

The spelling of 830481 in words is "eight hundred thirty thousand, four hundred eighty-one".

Divisors: 1 3 276827 830481