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83128301 is a prime number
BaseRepresentation
bin1001111010001…
…10111111101101
312210102100120222
410331012333231
5132240101201
612125421125
72026402364
oct475067755
9183370528
1083128301
1142a18583
1223a0a7a5
13142b7259
14b07c7db
15747091b
hex4f46fed

83128301 has 2 divisors, whose sum is σ = 83128302. Its totient is φ = 83128300.

The previous prime is 83128271. The next prime is 83128319. The reversal of 83128301 is 10382138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62425801 + 20702500 = 7901^2 + 4550^2 .

It is a cyclic number.

It is not a de Polignac number, because 83128301 - 210 = 83127277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83128901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41564150 + 41564151.

It is an arithmetic number, because the mean of its divisors is an integer number (41564151).

Almost surely, 283128301 is an apocalyptic number.

It is an amenable number.

83128301 is a deficient number, since it is larger than the sum of its proper divisors (1).

83128301 is an equidigital number, since it uses as much as digits as its factorization.

83128301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 83128301 is about 9117.4722922529. The cubic root of 83128301 is about 436.4317136934.

The spelling of 83128301 in words is "eighty-three million, one hundred twenty-eight thousand, three hundred one".