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82383521 = 1122732993
BaseRepresentation
bin1001110100100…
…01001010100001
312202000111221112
410322101022201
5132042233041
612101433105
72020151123
oct472211241
9182014845
1082383521
1142559a60
122370b795
13140b625c
14ad27213
157374deb
hex4e912a1

82383521 has 8 divisors (see below), whose sum is σ = 90271584. Its totient is φ = 74561920.

The previous prime is 82383481. The next prime is 82383551. The reversal of 82383521 is 12538328.

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 82383521 - 214 = 82367137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82383551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14000 + ... + 18993.

It is an arithmetic number, because the mean of its divisors is an integer number (11283948).

Almost surely, 282383521 is an apocalyptic number.

It is an amenable number.

82383521 is a deficient number, since it is larger than the sum of its proper divisors (7888063).

82383521 is a wasteful number, since it uses less digits than its factorization.

82383521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33231.

The product of its digits is 11520, while the sum is 32.

The square root of 82383521 is about 9076.5368395661. The cubic root of 82383521 is about 435.1244123816.

The spelling of 82383521 in words is "eighty-two million, three hundred eighty-three thousand, five hundred twenty-one".

Divisors: 1 11 227 2497 32993 362923 7489411 82383521