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82800801 = 329200089
BaseRepresentation
bin1001110111101…
…11000010100001
312202210201100100
410323313002201
5132144111201
612114413013
72023536516
oct473670241
9182721310
1082800801
1142814516
1223891169
1314201175
14add530d
157408886
hex4ef70a1

82800801 has 6 divisors (see below), whose sum is σ = 119601170. Its totient is φ = 55200528.

The previous prime is 82800797. The next prime is 82800821. The reversal of 82800801 is 10800828.

It can be written as a sum of positive squares in only one way, i.e., 71571600 + 11229201 = 8460^2 + 3351^2 .

It is not a de Polignac number, because 82800801 - 22 = 82800797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82800821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4600036 + ... + 4600053.

Almost surely, 282800801 is an apocalyptic number.

It is an amenable number.

82800801 is a deficient number, since it is larger than the sum of its proper divisors (36800369).

82800801 is a wasteful number, since it uses less digits than its factorization.

82800801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9200095 (or 9200092 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 82800801 is about 9099.4945464020. The cubic root of 82800801 is about 435.8578237011.

Adding to 82800801 its sum of digits (27), we get a palindrome (82800828).

The spelling of 82800801 in words is "eighty-two million, eight hundred thousand, eight hundred one".

Divisors: 1 3 9 9200089 27600267 82800801