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978230 = 25118893
BaseRepresentation
bin11101110110100110110
31211200212202
43232310312
5222300410
632544502
711212661
oct3566466
91750782
10978230
11608a60
123b2132
13283346
141b66d8
15144ca5
hexeed36

978230 has 16 divisors (see below), whose sum is σ = 1921104. Its totient is φ = 355680.

The previous prime is 978223. The next prime is 978233. The reversal of 978230 is 32879.

It is a junction number, because it is equal to n+sod(n) for n = 978193 and 978202.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 978230.

It is not an unprimeable number, because it can be changed into a prime (978233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4337 + ... + 4556.

It is an arithmetic number, because the mean of its divisors is an integer number (120069).

2978230 is an apocalyptic number.

978230 is a deficient number, since it is larger than the sum of its proper divisors (942874).

978230 is a wasteful number, since it uses less digits than its factorization.

978230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8911.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 978230 is about 989.0551046327. The cubic root of 978230 is about 99.2690027845.

The spelling of 978230 in words is "nine hundred seventy-eight thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 8893 17786 44465 88930 97823 195646 489115 978230