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82555630 = 258255563
BaseRepresentation
bin1001110101110…
…11001011101110
312202100021000221
410322323023232
5132113240010
612105241554
72021465653
oct472731356
9182307027
1082555630
11426672a3
12237932ba
13141466b1
14ad6dc2a
1573aadda
hex4ebb2ee

82555630 has 8 divisors (see below), whose sum is σ = 148600152. Its totient is φ = 33022248.

The previous prime is 82555597. The next prime is 82555639. The reversal of 82555630 is 3655528.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82555639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4127772 + ... + 4127791.

It is an arithmetic number, because the mean of its divisors is an integer number (18575019).

Almost surely, 282555630 is an apocalyptic number.

82555630 is a deficient number, since it is larger than the sum of its proper divisors (66044522).

82555630 is a wasteful number, since it uses less digits than its factorization.

82555630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255570.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 82555630 is about 9086.0128769444. The cubic root of 82555630 is about 435.4272105482.

The spelling of 82555630 in words is "eighty-two million, five hundred fifty-five thousand, six hundred thirty".

Divisors: 1 2 5 10 8255563 16511126 41277815 82555630