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83080285 = 5163101939
BaseRepresentation
bin1001111001110…
…11010001011101
312210022220201121
410330323101131
5132232032120
612124410541
72026112401
oct474732135
9183286647
1083080285
11429954a2
12239a6a51
131429b442
14b069101
1574615aa
hex4f3b45d

83080285 has 8 divisors (see below), whose sum is σ = 100308960. Its totient is φ = 66055824.

The previous prime is 83080253. The next prime is 83080289. The reversal of 83080285 is 58208038.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83080285 - 25 = 83080253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83080285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83080289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50155 + ... + 51784.

It is an arithmetic number, because the mean of its divisors is an integer number (12538620).

Almost surely, 283080285 is an apocalyptic number.

It is an amenable number.

83080285 is a deficient number, since it is larger than the sum of its proper divisors (17228675).

83080285 is a wasteful number, since it uses less digits than its factorization.

83080285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102107.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 83080285 is about 9114.8387259457. The cubic root of 83080285 is about 436.3476679434.

The spelling of 83080285 in words is "eighty-three million, eighty thousand, two hundred eighty-five".

Divisors: 1 5 163 815 101939 509695 16616057 83080285