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82434101 = 149553249
BaseRepresentation
bin1001110100111…
…01100000110101
312202010002022212
410322131200311
5132100342401
612102503205
72020451441
oct472354065
9182102285
1082434101
1142593a62
1223734b05
1314103299
14ad3b821
157384dbb
hex4e9d835

82434101 has 4 divisors (see below), whose sum is σ = 82987500. Its totient is φ = 81880704.

The previous prime is 82434083. The next prime is 82434127. The reversal of 82434101 is 10143428.

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 17631601 + 64802500 = 4199^2 + 8050^2 .

It is a cyclic number.

It is not a de Polignac number, because 82434101 - 226 = 15325237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82434161) 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, 276476 + ... + 276773.

It is an arithmetic number, because the mean of its divisors is an integer number (20746875).

Almost surely, 282434101 is an apocalyptic number.

It is an amenable number.

82434101 is a deficient number, since it is larger than the sum of its proper divisors (553399).

82434101 is a wasteful number, since it uses less digits than its factorization.

82434101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553398.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 82434101 is about 9079.3227170313. The cubic root of 82434101 is about 435.2134434966.

Adding to 82434101 its reverse (10143428), we get a palindrome (92577529).

The spelling of 82434101 in words is "eighty-two million, four hundred thirty-four thousand, one hundred one".

Divisors: 1 149 553249 82434101