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82304413 = 259331741
BaseRepresentation
bin1001110011111…
…01110110011101
312201212111102121
410321331312131
5132032220123
612100022541
72016401362
oct471756635
9181774377
1082304413
1142505584
1223691a51
1314089249
14ad06469
15735b75d
hex4e7dd9d

82304413 has 4 divisors (see below), whose sum is σ = 82338748. Its totient is φ = 82270080.

The previous prime is 82304401. The next prime is 82304437. The reversal of 82304413 is 31440328.

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

It can be written as a sum of positive squares in 2 ways, for example, as 54140164 + 28164249 = 7358^2 + 5307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-82304413 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 (82302413) 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, 13278 + ... + 18463.

It is an arithmetic number, because the mean of its divisors is an integer number (20584687).

Almost surely, 282304413 is an apocalyptic number.

It is an amenable number.

82304413 is a deficient number, since it is larger than the sum of its proper divisors (34335).

82304413 is a wasteful number, since it uses less digits than its factorization.

82304413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34334.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 82304413 is about 9072.1779634220. The cubic root of 82304413 is about 434.9850930726.

The spelling of 82304413 in words is "eighty-two million, three hundred four thousand, four hundred thirteen".

Divisors: 1 2593 31741 82304413