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83020133 = 723515653
BaseRepresentation
bin1001111001011…
…00100101100101
312210012212012202
410330230211211
5132223121013
612123224245
72025442130
oct474544545
9183185182
1083020133
1142954289
1223978085
1314279c51
14b051217
15744d858
hex4f2c965

83020133 has 8 divisors (see below), whose sum is σ = 99005568. Its totient is φ = 68066064.

The previous prime is 83020111. The next prime is 83020141. The reversal of 83020133 is 33102038.

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 83020133 - 28 = 83019877 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 (83020183) 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, 257666 + ... + 257987.

It is an arithmetic number, because the mean of its divisors is an integer number (12375696).

Almost surely, 283020133 is an apocalyptic number.

It is an amenable number.

83020133 is a deficient number, since it is larger than the sum of its proper divisors (15985435).

83020133 is a wasteful number, since it uses less digits than its factorization.

83020133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515683.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 83020133 is about 9111.5384540702. The cubic root of 83020133 is about 436.2423340005.

The spelling of 83020133 in words is "eighty-three million, twenty thousand, one hundred thirty-three".

Divisors: 1 7 23 161 515653 3609571 11860019 83020133